I find the app very slow and cumbersome to navigate. The video doorbell feature is useless if you want to talk to someone at your door. Why? Because by the time you get the notification that someone rang the doorbell, open the app, wait for it to connect to the camera, press the talk button, the person has long since walked away. This is not what I expected when I had ADT install the cameras. If you already have the app up and running at the time of the even, it works satisfactorily.