Made of only pure, crushed minerals from the earth, i.d. bareMinerals SPF 15 Foundation looks like a powder, feels like a cream and buffs on like silk, giving skin a natural luminosity, and feels as if you are not wearing any makeup at all. The coverage is flawless, free of preservatives, talc, oil, waxes, fragrances, and other chemicals that can irritate skin and cause breakouts.
Haven't tried that particular one, but am currently using testers of Lily Lolo, which is the same sort of thing - am v impressed. Am also impressed at the price/availability of testers on the site - v useful for deciding on colours/whether it suits you.
I'm with JackieNo. I really like the Lily Lolo mineral foundation. Get a couple of testers of different colours (they're really cheap) so you can work out what suits you best before you buy a whole pot. I reckon having the proper kabuki brush makes a difference too.