Great at first, but will overheat and break eventually.
I've used and gone through many foot callus removers, and usually it's my toddler who somehow breaks it. I bought this callus remover because it's corded. It was powerful and kept going beyond the lifespan of the battery powered ones, but the motor did burn out eventually, and all my refill rollers I bought are unused. I may have used it for too long at one sitting, but there was no warning that it was overheating before it slowed way down and died.
Rating: 4 stars