Looks nice but I think you need to be a networking expert to know how to use it. I know a little but I can't figure out how to use it. The instructions are so incredibly vague that they're useless. I just wanted to test a bunch of cables I was running and it was supposed to be a tester but I had no idea how to use it. The instructions usually contain a disclaimer and are legal. Most of them say that you need to judge the state of the connection by the behavior of the indicators. Really helps me, no. I'll play around with it and try to find out, but for now I regret not having ordered it. Maybe I would have a better rating if they really put some effort into the instructions?