I bought this for my boyfriend for Christmas and we've been loving it ever since. All of the concerns I read about the lock in reviews (mostly of earlier versions) have since been resolved because none have popped up with ours. I love how easy it is to remotely let someone in/out of our apartment, check when the dog walker comes and leaves, and have peace of mind that the door is locked while laying in bed. Auto lock & unlock are amazing features. My only complaint is that the home range is a little wide for someone who lives in a city (would be perfect if I lived in a suburb or drove a car, though). I set up an auto-lock timer at 2 minutes to resolve this problem. Overall, 5/5 for this product.