Application:
Simple home testing to map circuits (Not a professional)
General Comments:
Great: Wiring tester, GFI shorting (to map GFI's)
OK to so-so: A little difficult to track circuits at breaker box. Have to manually fine tune the sensitivity. Still prone to false-positives. Also, I have a total of 3 breaker boxes (2 subpanels) so false positives can really misdirect you.
Overall, if you just use it occasionally and don't mind having to flip a few extra breakers, then it will suit your purpose. But if you need 100% accuracy or use it all the time, you probably want to spend more $.
Overall I'm happy with it, especially at the price point; but it does have a few issues