Like the of the rest of the reviews say there some problems to overcome. The first was getting my Dahua camera to display. That turned out to be authentication in the camera ONVIF setting need to be shut off. The GWSecurity camera worked first try. The second problem was the Activex plugin in Windows 10 is no longer supported. After some searching, I found Chrome has a IE7 plugin that emulates Internet Explorer. After installing that everything was fine for remote viewing. Third Problem was the CMS program that came with the DVR. It to wasn't made for windows 10. However, changing it's compatibly to Windows 7 fixes that.
Over all for the price, it is a very good.