Both day and night picture quality is surprisingly good, especially for the price. Our large room is adequately illuminated by the camera for good night vision. Microphone pickup is ok but not great. Speaker on the camera is too quiet to be of much use. The camera doesn't tilt down as much as I would have liked, but not a big deal. The app is a bit basic but works just fine. You can control camera pan and tilt, zoom in (Digital zoom) and make recordings. Responsiveness over mobile network is good, as is the streaming quality. Have not had any connectivity issues or dropouts, and have been using 24/7 for the past month. All in all a very good buy!