Set up was quite easy by following the instruction (less than five minutes), fully charged the battery, drill hole to screw the bracket on wall and plug it on and ready to go. Video quality is quite clear with 720p, I think is enough as a door bell security camera as well as picture resolution. Motion detection works good and the responsive rate is fast enough ( it could be better). Have been using for a week now and happy with it.The door chime actually is quite loud( I put it behind my TV) and I still hear very loud when I was watching movies. The instructions said you can change the door bell ringtone but I haven't have a chance to test it yet.Tip: make sure your wifi is 2.4ghz, otherwise you are not able to connect it ( I did not realize at the beginning). Also it would be better if there is indicator light for the battery charging.