Love the Power [SEP] Love the power behind this thing! It's true that if you aren't careful it really hurts, but if you are gentle & have a steady hand & only touch the sander to your foot for a second at a time then it works miracles! I love it because it's effective & the results are almost instant after 5 minutes or so per foot. I was compelled to try this after I tried several gutless feet sanders & the reviews were true to their word!