I had tried a couple of other cheaper HDMI extenders that just simply didn't work or if they did work the picture quality was poor. This one is on 100 feet of cat6 and the only problem I had was covered in the setup instructions. You have to direct connect the transmitter box to your Display TV and let the two of them talk to each other and get the codes shared. Then reconnect the transmitter to the source of the HDMI signal and it works great.