Well worth the money and it works well.
A great tool  Works well. Lots of power. Removes calluses and dead skin very well. Its the best callus remover I have tried and I think I have tried them all, including razor blade hand held units, Clairsonic, rasps, etc.  There are several style rollers with different levels of grit. They work as they should.  My roller is lasting me for multiple uses.  I am 64, male, with chronic cracked heel and hard callus on my heels.  The Emjoi along with use of Urea 41% has completely eliminated both. I bought the electric because it sustains power and doesn't run out of charge.  Its just a tad more expensive than the battery or rechargeable model. But worth the extra $10-12 dollars. This product is well designed and lives up to its promise in actual performance.
Rating: 5 stars