I have been trying to buy one of these off-brand PTZ IP cameras to cover the outside of my property for a few years now. I need about 6 of them, so the price does matter, thus going for the off-brands. On and off I get one to test and see if they have improved in any way. The prices keep dropping but the problems still remain. I have tried 4 different brands so far:- USG Auto-Tracking IP PTZ Speed Dome Camera ,- IMPORX 2MP 20X Zoom Auto Tracking PTZ Camera- [1080P] PoE+ PTZ Security Camera, NexTSee full review