I've been using MAC face and body for the last few months. The coverage is sheer but buildable. For the most part I really like it. I am a NW45/47 and I bought N9 because it was the darkest shade they had. because it is so sheer it just blends into your skin. Some cons are that the formula is very watery and can be a little messy when applying. It seems a tad to light sometimes depending on the light, but it photographs great. I've had to play arount with the best way to apply it: I bought one of those beauty blending spounge knock offs from target and that seems to work the best out of using fingers or a foundation brush (which left streaks when I used it). Lastly, my biggest pet peeve about it is that I really don't think its water proof. One of the reasons I bought it was to have a summer foundation that was light since I live in sunny south Flordia, and I can't wear this out in the heat. It just melts off my face. Everytime I use my cell phone it gets smeared with tons of makeup using face and body.
Sorry for the rambling post, but I wanted to include all details. I originally wanted to get MUFE face and body, which I have hear is very nice and has a gel consistantcy, but MAC gave more for your money so I went with that. I'm going to try to get my hand on the new tinted moisturizer for the rest of the summer, I've seen good reviews about that.