I have been using the Clarisonic Mia 1 for about 2 years now and I can honestly say it is effective. I see a positive difference in my skins texture. I use the soft brush head because my skin is sensitive and it works well for me. I love that you can customize the machine to your needs. One negative this I will say is me being such a bacterial freak I do feel like the machine builds up moisture bacteria and because of this I change my brush head more often then recommended.