This castle is exactly what I was looking for. The installation was very easy. I had already drilled the hole and was in the process of replacing a doorknob so I didn't have to do that, but it had instructions on the details. Installation and setup was very easy. I was able to do it without the instructions, although I checked them at the end to confirm everything went well as I was confused about something. If you have ever installed a doorknob, you can do this easily. It's the perfect size and perfect for opening the door with your thumb. It feels like it's well made and made of good materials. The fingerprint scanner is super accurate. I recommend the version with the app activated as it makes a loud, fairly intense beep when unlocked. However, the app allows you to disable this. I purchased the app version and setup was incredibly easy. I managed to add my husband as an admin as well with very little effort. If I had to object, it would be that if you have the auto-lock feature disabled, you apparently have to use the app to lock the door. I wish there was a way to lock it when I leave without using my phone. If there is a way to do this, I'm definitely missing it somehow.