Does exactly what it claims to do!
If you have used electric callus removers before, you know the biggest issue is how much power does it have.  So many of them just bog down under pressure and wind up being so slow to accomplish anything.  This one is amazing!  You can really apply some real pressure on the callus with this Emjoi Micro-Pedi Pro without it slowing down much at all, so you can really get fast results.  Love this thing!  The rechargeable batteries really hold a large amount of power and really last.  I was under the impression that when it is plugged in, you are then running off of the house current, but that is not so.  Plugging it in is only to recharge the batteries.  BUT THAT DOESN'T MATTER AT ALL, because it somehow has loads of power even though it only is using battery power!  I am very impressed and very happy.  Couldn't stand the old ones any more, as they were just so slow and weak feeling.  Not this one, and I will say that there is just no comparison at all.  It of course would be hard to put a number on it, but I would say that this gets the job done 10 times faster!  If you want one that is designed to get the job done, get this one and I think that you can't go wrong!
Rating: 5 stars