Review (1/5): Battery won't hold charge
I purchased the rechargeable-battery option in an attempt to duplicate the performance comparable to a toothbrush with a rechargeable battery vs. a disposable-battery powered brush. I have an intractable skin condition on my hands, similar to callus growth, that is managed by periodic buffing using a pumice stone and a Dr. Scholl's file - I'd hoped that this appliance would save me elbow grease and time - and would be useful as a pedicure device as well! After charging the appliance for 24 hours, it seemed to perform fine, permitting me to sand off rough skin in less time than I'd been accustomed to spending with manual implements. However, subsequent uses (the most recent after making sure the thing was charged for another 24 hours) show that the product's rechargeable battery is bad or that something else about the product is defective. The thing dies after approximately one minute of continuous use - the rotating head slows and stops with only mild pressure.
I'm returning it and asking for a replacement, and will give it one more chance before going to the battery-operated version. Certainly the price is advantageous, but one does expect even a value-priced device to actually work...