I just got my full-sized stuff from OM today! I took a chance on the Mermaid's Kiss blush, and am thrilled with it. I am fair and slightly warm complected (I use either Sunsilk or Linen foundation, or a blend of the two), and it looks exactly like my natural cheek color after exercise. Great stuff.
The staying power has been pretty good for me, especially with a primer (I use Monistat Chafing Relief Powder-Gel).
I've used some of my Deep Thoughts e/s samples now as well, and I really love some of the colors. I've had some trouble with creasing, which is no surprise considering my deep set eyes, but I haven't been using a primer, either. I'll retest once I get my paws on some Primer Potion.