Not enough pressure to do the job
Maybe I have caveman feet, but the Personal Pedi by Laurent is not strong enough to get my feet all the way to smooth.  I use new batteries every time just to get the most strength out of it.  I don't use the light blue one (the buffer) at all because the gray one (for exfoliating) doesn't do a good enough job to warrant the buffer.
Rating: 2 stars