It is a fantastic product and keeps your skin feeling great, but it is about the only Micro Dermabrasion that you cannot get new sponges or brushes for. So once the ones that come with it wear out you have to buy a new full system.
Be sure which of the 3 versions you want before you part with your cash. This is not the version from the cinema but the american version (so I'm told) - though the missing scenes are on the second disc, and it is not the extented version either.
It's still a great film, just make sure it's the version for you.