I spent a cycle on Seasonique. It made me break out really terribly, so I switched to a regular low-dose pill (Low-Ogestrel) and stack 'em, so I still only have 4 periods a year. My periods haven't been any heavier, they've actually gotten lighter and shorter with each cycle. If you're gonna do this, anticipate breakthrough bleeding. I had it for about 2.5 weeks (up until my placebo week) my first cycle through on Seasonique, and I had it for three more cycles after that, but with every cycle it started later and later and was lighter, and my last cycle I had no spotting at all, huzzah! It's minorly annoying, but for me avoiding the horrific PMDD I was experiencing before (and not having to deal with a period every month) makes it totally worth it for me. :)