I have been on Alesse for three months + have had really good luck w/ it. The only thing that I really noticed is that I am a lot more tired than I used to be + my period, which was very light to begin with, as all but disappeared. As for weight gain, I haven't noticed anything substantial. Previously, I had been on Desogen + experienced tremendous breast tenderness + growth!!!! I was very concerned about gaining weight on BC + feel that Alesse has alleviated those fears.