Using this on the end of a generator line. Had a Leviton that I'd bought new and one of the ground lugs stripped. The Hubbell is far better in wire management/connections and it made for a far better fit/result.
Besides being a very good product the price was far better than I could find from anyone else: I was actually a bit worried about this, but it turned out to be the real deal. Prompt shipping to boot! If you need one of these this is the one to get, and the place to get it!