This foundation covers up almost anything without looking unnatural at all. It is relatively heavy coverage, but it's perfect for photographs or as the basis for a classic, "made-up" face, especially in winter and in the evening. During the day, it's best used sparingly, either simply applied to "problem areas" and well blended, or even mixed with a small amount of colourless, oil-free moisturiser before applying. The only other foundation I own is NARS Gel Fraîcheur (San Moritz), and when I need anything heavier, Mat Velvet suffices. I use the shade 01, which is a good match for my fair, warmish skin (although a little bit too dark in the dead of winter).
I do have some trouble with the bottle, because the foundation tends to run into the cap if the bottle isn't kept upright, and then there's some waste or spillage.