this review title is: not so happy and the content is: i have never used those machines before to remove callus so i cannot compare with other brands but i found it a little bit slow and too soft maybe my feet are too hard and not well treated as most of people i will try to use a little bit for some days to see if it helpsnot so happy with that.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.