I cannot praise Clarisonic skin care systems enough! A few dermatologist friends recommended them, and being a guy I didn't put much stock in them. I got a Mia2 system, tried it a few weeks, and didn't notice a difference. It wasn't until I tried different brush heads, finding the right one for my face, that I realized how effective these systems are in cleansing, exfoliating and maintaining healthier skin. I eventually upgraded to the Aria and gave my Mia2 to a friend.
Similar to the Sonicare systems, it uses the bristles to work with whatever facial cleanser you use to break down impurities in your skin while exfoliating away dead cells. A little bit goes a long way, unlike using too much cleanser with your hands, a small amount places on the brush head before cleansing is all you need. More effectively cleansing my face, allowing me to use less cleanser and less moisturizer as it absorbs better after a good cleaning.