RMSwrote a review of CW-X Insulator Endurance Pro Tight - Women's on November 20, 2015
Familiarity: I've put it through the wringer
Fit: True to size
It fits very snug but I got used to it very quickly. I followed the chart they provided for the size and it was appropriate. The first day I was doubtful but it did stretch a bit the second time onward.
As for its effectiveness: These tights do appear to help stabilize my left knee and prevent further injury. Since I've started wearing these tights, I have also not felt the soreness around the quads and calves as much as I used to. And I used to have a hard time going down the stairs the day after a long run, but now it seems to be less of a problem.
I believe the tights don't necessarly solve my existing running flaws, but it sure helps me by letting me recover much faster. This way I am able to keep training daily without stopping.