Review (5/5): This thing works really well!  My feet are thankful.
I picked this up as a Lightning Deal figuring that if it didn't work, I wasn't out that much money. I was desperate for something to help my feet. I have really bad problems with dry, cracked heels. Even soaking my feet for 30 minutes and then using the callus scraper (i.e. cheese slicer) thing was only minimally effective. Plus, it's time intensive. So, I bought this on a whim after reading so many positive reviews.
In the box is the callus remover, a little cleaning brush, the charging cord, and an extra pumice roller. The callus remover is about 6 inches long and fits really nicely in your hand. It doesn't feel cheap, but it's not heavy either. The pumice roller is about 1.5 inches wide and is rough to the touch. However, when you use it on your feet, it doesn't hurt at all. I thought I'd need to use more pressure to get the job done, but you really just run the pumice part across your skin and let it work it's magic. And, if you push down too hard, the roller stops. So, it would be hard to injure your foot.
If your feet have a lot of tough skin, this little machine will generate a lot of skin dust. I would suggest using it over a towel or somewhere that is easy to clean up.
This is not a quiet tool. Not as loud as a blender, but definitely louder than, say a fan. It's probably about the same noise level as an electric toothbrush, maybe a little louder.
I have to admit, I am astonished with how well it's worked so far. Right out of the box it had a charge, so I decided to give it a try. As I said, my expectations were low. Two feet and 20 minutes later, I'm amazed with how smooth my feet are. I had some really bad cracking on one of my heels and now it's very smooth. I can't even feel or see the crack any longer.
As long as this holds up, I think I'm going to love this little tool! It's going to be an integral part of my foot care.