I take them off with an impact most of the time, but I've never had any difficulty getting them off with anything that has a decent handle.
It looks pretty compact though, so I guess women may find it useful to carry around in place of the lugwrench. I don't think I've had a girlfriend yet that can take the lugnuts off her car with the factory supplied lugwrench! Some of those lugwrenches are pretty cheap too. I bent one to the point of not being useable one time with very little effort. Most hold up OK though.