Great product/
This has worked amazingly for my feet.  My feet are no longer rough and an embarrassment.  The only drawback is sometimes the head does not come on so I have to tap it, but I still would not exchange it.  This thing is very simple to use.  I use it after soaking my foot in a listerine/vinegar soak and my feet always end up so so smooth.  In my opinion this works just as well as the $50+ files.
Rating: 5 stars