Est run time: 15-20s.
Usefulness: If you don't already have these saved, finding the URLs by hand can be annoying. This pulls them in seconds. That's time you can better spend elsewhere, like exercising or joining a cult (signing up for Crossfit would accomplish both).
Caveats: It's not 100% perfect, but should be pretty accurate.
Additional: The 1-word descriptor is useful if there's another company with the same name (if that's not the case, you're better off not adding anything). Keep as short as possible - like 'ads', 'lawyers', 'sales', etc. In fact, the shorter the better!