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Description
Leuchtturm Hardcover A5 Squared Notebook - BlackThe Leuchtturm Hardcover A5 Squared Notebook Black brings dependable structure to notes, planning, and everyday ideas. With a portable A5 footprint and a clean, professional aesthetic, it is an easy, go anywhere companion that handles daily writing with ease. Craftsmanship & Design A sturdy thread bound construction helps the notebook open flat, so writing across the gutter feels natural. The hard cover stands up to life in a bag, while the elastic
The Leuchtturm Hardcover A5 Squared Notebook - Black brings dependable structure to notes, planning, and everyday ideas. With a portable A5 footprint and a clean, professional aesthetic, it is an easy, go-anywhere companion that handles daily writing with ease.
Craftsmanship & Design
A sturdy thread-bound construction helps the notebook open flat, so writing across the gutter feels natural. The hard cover stands up to life in a bag, while the elastic closure keeps pages secure on the move. An expandable rear pocket provides a tidy place for loose sheets, receipts, and cards.
Writing Experience
Smooth, ink-friendly paper offers reliable performance with most pencils, gel pens, rollerballs, and many fountain pens. The squared ruling supports diagrams, tables, habit tracking, and neatly aligned lists, making it easy to keep work and ideas organized.
Technical Specifications
- Format: A5
- Ruling: Squared (grid)
- Cover: Hardcover
- Color: Black
- Binding: Thread-bound; opens flat
- Features: Elastic closure; expandable rear pocket
- Brand: Leuchtturm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 195 reviews
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Product Reviews
★★★★★ 3
My Experience With The C20
Size: C20
Initial Performance (First 3–4 Months)
For the first three to four months, the Eufy C20 worked exactly as advertised. It kept the entire first floor of my home—100% tile—spotless. Navigation was smooth, battery life was consistent, and it completed full cleaning cycles without issues. During this period, I was very satisfied with its performance.
Battery & Performance Decline
After about four months, the battery life and overall reliability started to decline noticeably. The robot began dying in random locations instead of returning to the dock when the battery was low. At times, it would simply stop in the middle of a cleaning cycle and remain in place until the battery was completely drained, forcing me to manually pick it up and return it to the dock.
Navigation & Software Issues
The navigation system also became unreliable over time. The robot would occasionally lose track of where it was, run headfirst into walls or corners, and fail to properly reroute itself. Pressing the home or power button to resume a task was inconsistent—sometimes it would restart, other times it would just sit there unresponsive.
Home Environment & Maintenance
My home does not have large carpets or difficult obstacles, so there’s no clear environmental reason for these issues. I also perform weekly to bi-weekly maintenance on the robot, including cleaning sensors and components, but this has not resolved the ongoing problems.
Overall Verdict
Overall, the Eufy C20 is a decent robot vacuum/mop for short-term use, but based on my experience, it does not hold up well long-term. I expected at least a full year of reliable performance, but the noticeable decline after only four months was disappointing, especially when paying over $400 for the product. It’s a good option for temporary or light use, but I would hesitate to rely on it as a long-term cleaning solution. Hopefully the warranty will cover whatever malfunctions the device is going through.
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Reviewed in the United States on December 9, 2025
★★★★★ 2
Not worth it
Size: C20
In the beginning I thought this vacuum was great. The longer I use it the more annoyed I am. At this point I often find myself using my old cannister vacuum or broom and manually mopping despite having a several hundred dollar appliance that is supposedly nearly autonomous in these tasks. Customer service has been mostly useless and often concludes the vacuum is working as it should. If this is the best it is intended to work, that's an issue.
Here are the problems I've noticed:
1. Many moving parts on the underside of the robot end up winding up human hair and other debris. In most of these places, it isn't possible to disassemble to the point of easily pulling out the hair. I desire to run the vacuum once weekly for a ~1400 sq ft apartment and at this rate, once or twice a month I need to be picking at the component parts with the tip of a knife to try to wrestle the hair tourniquets off of where its wound up. If I don't do that, the vacuum is incredibly squeaky and loud.
2. Debris accumulates in the base station tray and clogs it up such that base station needs to be cleaned regularly or else the mops stay too wet and do not dry. Again this is a once or twice per month task. Otherwise you could run an entire dry cycle on the mops and still come out with soaking wet mops. Do I remember to check the mops every time to make sure they did indeed dry? No, so then soggy nasty mops sit there for a long time. Kind of defeats the purpose of self washing and drying.
3. Possibly related to the above or not, I really can't tell -- the mops start out too wet and leave little puddles that dry into unsightly water spots on the floor when it first begins mopping. Then it quickly loses all water and seems to be doing basically nothing. Adjusting the frequency of return helps slightly with the second problem but not the first, and I end up passing over with a manual mop every time to clear standing water and eliminate water spot stains.
4. Poor emptying of dustbin resulting in poor suction and accumulation of debris at the site of the base station. Seriously, half the time even on turbo suction this vacuum LEAVES more dust on rugs in its wake than it picks up. I can clean my doormat better with a quick sweep with the broom. When it gets back to the base station to empty, half the time it flings debris out from the base station at high speed and I have to sweep up its mess. Manually emptying the on-board dust bin helps, but isn't supposed to be necessary -- this thing is allegedly self emptying and certainly makes quite enough sound during the emptying phase to have you believe it is emptying the dustbin. Add one more once or twice monthly maintenance requirement that isn't supposed to be needed.
5. Dustbunnies, rather than getting sucked up, attach to various parts of the bottom of the vacuum contributing to other problems described above. As soon as it goes over a rug, the rug pulls all the dustbunnies off, now they are on your rug instead of the wood floor. If the vacuum makes it back to the base station with the dustbunnies attached, now they are clogging up the mop tray.
6. Sometimes cannot figure out how to reseat itself at home base. It finds the base station, then just gets stuck in a loop of rearing up and heading towards it and missing. I have to sometimes out it back to charge manually.
All in all, it really needs a lot of attention for what is meant to be a pretty independent machine. Customer service flat out told me the mopping is functioning as expected. Gross, I don't know why you would think any customer wants puddles of water left behind that can damage wood floors or leave unsightly stains, but ok. Only ever offered to send a replacement vacuum if I pack this one up to return. If it's working properly, I don't want a replacement, I want a refund! Let me go back to my old cannister vacuum and hand mop in peace. Maybe the models at higher price points are better without these issue; I wouldn't know.
Edited to add, the manufacturer reached out to me and was able to set me up to try out the S1 ad an alternative due to these concerns. I am bumping the review from one star to 2 for the strong customer service. In my opinion, the S1 is a much stronger performing vacuum/mop combo.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Good buy
Works well with my Eufy C10, very easy to install
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Reviewed in the United States on March 26, 2026
★★★★★ 1
Filter is too small for full coverage
Filters are not the correct size, too small. Not worth the risk.
Brush arm bristles were also all bent up.
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Reviewed in the United States on May 13, 2026
★★★★★ 2
Filters are the wrong size for the Eufy C10 vacuum
The air filters are smaller than the stock air filter. They will probably work if they are stretched out a bit, but as delivered, are unacceptable. The roller and the sweeper are good. Poor filter fit. Original filter size: 1.75 inch by 3.65625 inch. The filters in this set are 1.25 inch by 3.5 inch. Too small.
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Reviewed in the United States on May 28, 2026