I think they are amazing products and they are my favorite makeup brand. I have been using their foundation for a few years and it's the only one that I've been completely happy with. Other foundations seemed to get cakey and look gross on my dry, sensitive skin. I found Bareminerals and it gives such a natural finish and even looks better throughout the day. My skin feels healthier and looks better with Bareminerals.
If you are looking to try them out, I recommend getting one of the holiday/seasonal sets that come with a variety of their products (blush, eye shadow, eyeliner, lipstick, lip gloss, etc). They are always a good value and it's a good way to try out the company.