poor performance - a star is too much

I have the Scholl Express Pedi equal in introducing the DM market gekauft.Normalerweise I buy come onto the market things immediately, but this time I made the mistake. The device smoothes the skin on the foot a bit, but you have to invest a lot of time and then can not even remove all the cornea (mind you have corneal normal size). Pressing lightly, hoping to achieve more results, then the machine stops.
Since I bought the introductory offer, I got 2 spare wheels for free. If they're used up, I'll dispose of the device. A colleague recently asked me what I thought of the device. I advised her from buying.

The new and supposedly improved model I'm going to buy under any circumstances. Even if the engine is a little stronger, I would not expect miracles in comparison to this primary FR. Since I buy a dear arrows and go again to a professional podiatrist. The does not take long to remove my cornea, but the foot will see very well maintained from.