I must admit that I thought these were to be used more as a bronzer than foundation/mattyfying powder. I like that you can take the darker ones out to make it lighter.
I would love the option for undertone pink skin as I found that it clashed with me because of being undertone yellow.
The price is a little more than I'd expect because you can get powders and bronzers for half of that and it's nearly the same price as the foundation.
I think these little guys will last AGES which is awesome and does help justifying paying that price.