Love the lock. Easy to install. All functions work as you expect save battery use. The manual says to replace batteries every six to eight months. That should read five to seven days. I replaced batteries the day I left for an eleven day trip. No one used the lock while I was gone. App did show 100% battery when I left. I had to use the key when I came back 11 days later. App showed 0% battery. This is the second lock. The first one had a broken wire or something in it. If replacing batteries every 5 days is ok for you and you get a lock that works this is a great lock. If you don't want the type of maintenance you better look for something else. I have had the lock for 4 weeks. Two of which no one was home. Had to replaced batteries 4 times.Have to reinstall after one month of use and the screws have design flaws.Finger print reader works sometimes, sometimes not. Code input doesn't stay on long enough to input code. I've put 4 copies of thumb prints in for both my wife and I thinking that would help the reader but that didn't seen to help. There is no instruction on how to solve problems. Thank goodness there's a key to open the lock. Any help would be appreciated. Overall not a good experience.Súper bueno lo recomiendo fácil de instalar y súper fácil para manejarEasy to useProduct works half of the timeWon’t read fingerprints