I've used Bare Minerals for about... Six or seven years, probably. I love it! It blends so easily, and I love how natural it looks, while doing all the things it should do.
I have tried so many mineral powder foundations and this is my favorite brand. It works well on older skin which many do not and even in the matte version it isn't drying nor does it settle into lines. The application is very light with the recommended brush which is possibly why it works best but the coverage is medium which looks most natural. I find it lasts pretty well throughout the day but can be touched up without looking too heavy. Light touch with the recommended brush is the trick as it can be applied too heavily if too much product is used.
I will not use any other type of foundation since starting this. It is a good mineral foundation with out all the glitter and shimmer that can leave you looking shiny.