I personally love this product. It works best with iPhones my husband has a Samsung and he has some trouble getting it to work. For the majority of the time it works great there have been a couple times where I had to tap it a second time or have the app open in order for the lock to work. There has been a couple times where it had a mind of its own and locked or unlocked when it wasn't told to. I love when I'm carrying kids and bags that I can just touch it and unlock the door and it's convenient for me to check the app to see if I remembered to lock the door. I also love how I can send ekeys to people instead of leaving a spare around the house for anyone to find. So yes it does have some faults/ glitches sometimes but what tech doesn't. And overall it is an amazing product and I look forward to buying more for my house. [This review was collected as part of a promotion.]