It fit well and was comfortable for trail running and road running. They kept me warm and dry, and still fit with a wool baselayer underneath. Maybe it's placebo effect, but I had less fatigue during the longer 3-4 hour runs. I didn't have any chafing even though I had forgotten bodyglide on a few of the runs.
Unfortunately, a medial thigh seam came undone during a short 6 miler a couple months after purchase, so they aren't very useful anymore. Luckily, Backcountry has a great return policy.
It would have gotten 5 stars if the product hadn't fallen apart. There are no more left in my size, so I can't get an exchange to figure out if it was just an anomaly. I'd buy a CW-X product again, though.