Not that I have used one of these a lot but clarisonic are a nice add on if you have acme. And you can use it in the shower. I have used one like 3 times but it does make your face look and feel like you got the dirt out of your pores.
The brushes are something you have to get use too but after a while you will be fine and hey clarisonic are not a bad thing to have in your bathroom.
But have more than one head for it because that might be a little disgusting.