Peticure rotary nail groomer?

Can anyone comment on the effectiveness, or lack thereof, of the
Peticure rotary nail grooming tool (http://peticure.com/)? A bit of
googling revealed that this is supposedly a better-built device than the
similarly-named copycat knock-offs which I seem to be getting spammed
about multiple times daily.

Our GSD absolutely hates to have her nails trimmed, and I'm wondering if
this tool is a decent alternative to a standard nail clipper, or just a
cheap gimmick.

Dave