Two and a half years ago I had moderate acne (whiteheads, blackheads, red spots) on my cheeks, and t-zone that didn't seem to be clearing up no matter which products I tried (and I tried a lot). In the Winter of 2012 I bought a clarisonic and after 3 months, my broken out skin was more controlled. The texture of my skin was much smoother and very soft, and the reddish pigmentation that my skin has suffered primarily on my cheeks was starting to even out more.
Fast forward to today. My skin is clear with no acne on my cheeks, occasional blemish on my t-zone, and the overall tone and texture of my skin is great.