Wanted something more reliable than just easy to use, it's both! I've read reviews from some other brands that they have a lot of false signals, this one is set up so it's not overly sensitive and in most cases it isn't unless it's actually wired (or plugs etc.) in contact indicates a malfunction. presence of power. That's exactly what I wanted, more accurate than Quick and Easy, but more false positives. Of course, keep in mind that these types of testers are only for pre-testing and you should use other tools like a plug-in tester or a multimeter to confirm this, especially if you are doing it yourself.