I LOVE IT! I work at Ulta and sell this one a lot. It's one of our top selling foundations as well. I have M3. It's such a nice lightweight light-medium coverage foundation that never looks cakey, is long lasting, paraben free for those who are worried about parabens, has SPF15, and of course made for the camera! I use this a lot on my clients, esp. brides because the skin looks flawless for the camera. It has the innovative pump technology that the bottom comes up as you use it so you dont waste any product. Its also very sanitary and makes it harder to spill.
I just love this foundation so much =) It also is oil-free and good for sensitive skin, won't clog pores or acne. I never breakout from it. =)