The margin of error in using this tool is small - it would be very easy to abrade too deeply
I've tried a battery-operated callus remover (Ped Egg) in the past, but it lacked sufficient power to do much.  This electric callus remover is almost too powerful.  I can't imagine anyone needing anything with more power.  The margin of error in using this tool is small - it would be very easy to abrade too deeply.  Still, it has the power I was looking for, so I have to give it that.  I have used it and it thinned out my calluses very well.
Rating: 4 stars