[This review was collected as part of a promotion.] I have had this lock installed for just about a month, and while the lock works well and looks nice, there have been some speedbumps along the way that might deter some purchasers. I appreciate the unit's solid construction and high-quality parts, and while I have not needed it as of yet, I know eufy has a strong customer service department to provide help to those who may need it.
Installing the product was relatively easy, but I can see how the process would be difficult for someone without a ton of door hardware installation knowledge. All necessary hardware was included in the box, all you need is your own tools. Once the lock was installed, I immediately experienced some Wi-Fi connectivity issues, with the lock disconnecting and reconnecting frequently even though our router is only 20 unobstructed feet from the front door. These issues have continued, but not been nearly as frequent. I occasionally get the notificaiton on my phone that the lock has disconnected form the Wi-Fi, only to get a reconnected notification soon therafter.
As for using the lock, the fingerprint reader can be a bit finicky if your finger isn't clean and dry, but the other opening options have made this not a very noticible issue, as you may unlock the unit viawith your phone through the app or use the keypad entry methods. I really like the auto-lock feature, however I have noticed that occasionally the unit will auto-lock itself after the set time even while the door is left opened (like when running out to grab mail), which means needing to disengage the lock before you cna shut your door and rengage the lock. Also, I have been fortunate to not have yet run into any battery charging issues, which a handful of other purchasers have mentioned. I have not yet had to recharge the unit after a month of regular use.
Overall, the lock is a sturdy unit that looks nice (albeit a bit large) when installed. If you can get over the small issues mentioned above, I think this would prove to be a good purchase. Just make sure you are a bit handy wiht tools and tech, and I don't think you will have any issues wiht this eufy locking system.