This is a great system. With that being said, my 5th star was robbed during installation. Now that everything is wired and up and running, we are happy with the whole system. Two of the cables for the cameras need to be longer. For instance my shop is 40x80. Only way to get all four corners is to install reciever in the middle of the shop. If two of the cameras had longer cables than I could have everything including the mouse and monitor in the same general location. reviewing is a breeze as you can set up areas and sensitivity settings. Easy but takes a little time to get used to all the settings. I reset to default multiple times until I found the settings that I like best.