Brushes- Face. Their face brushes are okay, not the best not the worst. They seem to be more bristly? Harder and more course then I would prefer, but they blend makeup well.
Concealer- I love their concealer brush! It is the perfect size to fit in the creases of your nose, or a smooth surface such as your T-zone. It is soft, but not fluffy, so you can build up makeup using it. It is also one of those brushes that could be used for multiple purposes.
Mascara- I LOVE their mascara! It doesn't flake, it makes my eyes pop, and stays on until you wash it off! Wonderful! But, it gives your lashes length, if you want volume, I would use something along the lines of Lash Blast.
Foundation- Really good quality, but not coverage. If you want just a light sheer covering its great. I used this in the summer because it was all that was needed. However, if you need something to cover blemishes, then I would use Maybelline Dream Liquid Mouse. (If you want light coverage but not mineral, use Mac`s tinted moisturizer.)
All in all, their products are great quality, but if your going to buy them, consider what they will be used for. (I.E light/heavy coverage, all day/temporarily, ect.)
Hope I helped- Jordan!