I was thrilled when I discovered this product two years ago (and though it's certainly expensive, I'm still on my first container). I have extremely acne-prone skin and therefore have never been able to use liquid foundation regularly, despite my need for it due to rosacea and acne. I'd previously spent years only spot-covering with Shine Free concealer. Then one day I found myself at the La Bella Donna counter at Bergdof's, and before I knew it the woman there had transformed me. Not only were all of my flaws covered, but I could barely tell I was wearing makeup. Before buying it, however, I first researched other mineral foundations, including Bare Escentuals and Youngblood. These and many others contain mica, which my naturally oily skin does NOT need, and I couldn't find a color match. Though LBD's Nicoletta is also a tad dark for me, it is by far the best fit, and I will definitely repurchase it. I did not, however, buy the makeup brush - I couldn't bring myself to pay another $45, and I was about to go into the jungle for a year where the chance of death-by-mold was high (for my products, not me!). I instead bought an Upstage Professional brush from a drugstore, which was adequate. Now that I'm back in civilization, however, I bought a BE flawless application brush and a maximum coverage concealer brush, both of which I am happy with. Now every day I will use only the concealer brush for spot coverage or both for all-over coverage. I'll one day also try a Bobbi Brown kabuki brush for more complete coverage. I have never needed to use a separate concealer. Two further notes: 1. this product will not control shine, so I need to blot throughout the day (toilet paper works for me) and 2. the powder will badly exaggerate any flakiness, so be sure to moisturize/exfoliate well beforehand (I use only a thick sunscreen).
**UPDATE** It's 2009, and this is still my HG foundation. The kabuki brush didn't do it for me (especially when used over sunscreen), so I've been sticking with my two BE brushes.