So, keep in mind this is only the second day I've had this. Let's start with the good. Easy install. Truly, simple instructions (a little too simple, would have liked a little more detail) and the only "scarry" part is drilling the hole to support the mounting hardware for the lock assembly. They give you 2 different templates for the 2 standard thicknesses of doors to help you drill the right location. What I found is best is to tape the template on top of the door prior to drilling and make sure everything lines up. This makes it way easier and less of a hassle when drilling. Also as stated in the video you want to first figure out if your door is metal skinned or not. You will find out pretty quickly. I say this because if it is like mine was, when you first start the hole, a bit of the metal will get stuck onto the drill bit and won't let you continue drilling. Get a pair of pliers and take it off and continue drilling. After I finished the install I checked to make sure all 5 keys worked because I saw reviews where they didn't match at all to the lock. Mine were all perfect. These are also laser cut keys so they are even harder to copy or pick which is nice. After that I went through the sequence to make myself an admin and input my new passcode. Now, when doing it manually on the keypad versus the app it will not allow anything less than 6 digits for your passcode. This took me a few tries until I figured that out. Then I manually put in my fingerprint. For whatever reason during this process, it just kept asking me over and over and over to no end to provide my fingerprint. I eventually stopped and hit the * button, tried the fingerprint lock and it worked like a charge. After that I attempted the app. This is where I had my issues. I attempted to register multiple times and it would not be give me a verification code. So during the registration process you can go through 2 ways. Either with an email or phone number. I tried email first. You put in your email, make a password and press "get code" and a timer starts counting down of 60s. I never got a code. Still haven't after nearly 24hrs and multiple attempts. I tried again but with my phone number. Same issue. I called customer service and no one was there. They called me back at 9:30pm and tried to help. But I think there was a lost in translation scenario because they were clearly not fluent in English nor I their language which I'm assuming was mandarin. He tried his best though and sent me a video tutorial to try and help. However it was a tutorial of the app AFTER you've successfully registered. But today at work I attempted again just to see and with using my phone number it worked instantly and I was able to start my account. When I got home I tried to sync my Bluetooth to the door lock to begin setting up other features. It would not sync and I also locked myself out of the system. Basically if you try your fingerprint too many times or a passcode and they all fail (I think 5 times) it locks you out and you can only lock or unlock from inside the door or via a key. So, I did a master reset of the lock which there's instructions in the manual on how to do it. They actually recommend this step if you have Bluetooth connection issues. After that everything worked fine, I connected the app to the lock and set it up how I wanted. Also it is at this point you can make a 4 digit code if you prefer less numbers. All in all this is a great buy especially when it's on sale like it was when I got it. Way better and cheaper than the Google Yale I use to have that always had issues. The problems I ran into with this lock were so minor and easy to forgive because of its prices. And now that it's working fine it's even more valuable. I highly recommend this lock!