I was on Yaz for almost 2 years. Lost weight, no problems with my skin, no change in sex drive. I felt like an absolutely normal person, but with shorter periods. Every other birth control pill I have taken has made me gain weight or become moody, but Yaz made me feel like I wasn't on a pill at all! My period only lasted about 3 days when I was on my last pill pack...I was part of a study on it so I was getting it for free...my only regret is that it's so expensive, because it's so much better than anything I've ever taken, and now that I'm not in the study I can't afford it anymore!