I bought this bluetooth deadbolt a year ago. I had it installed in 10 minutes and set up in another 10 minutes. Over a year I had to install two updates which were simple and the app walked me through the process. The lock itself is convenient. The only time it's been a hassle is when my phone is in my back pocket and the signal doesn't reach the lock. Not bad since I only have to swing myself around so the phone faces the lock so I can't complain. Generating "e-keys" in the app for other people is a great feature while away and needing to give someone access to your home (although the only pitfall is having to leave the handle unlocked...I wish they would make a door handle to match!)