As I sell the stuff, I have a lot of it also. Durability is its only weak point IMO. So I don't buy their leggings. (although I have a set of 260 leggings used for snow use hiding behind the WPs).
I'd say I'd have about 20 pieces of the stuff, 320, 200, 150's, socks and undies. My girlfriend has RIDICOLOS quantities of it.
Overall I love it, I wouldn't rave about the warmth so much because I think its only on par with lots of other brands, but its breathability is outstanding and its fit is usually spot on. I hike in a 150 or 200 T Shirt in the summer, been used in mid 30's degrees with a 36kg pack on a few occasions. Also used in Arizona in 45+ degrees and despite a hike to the base and back up of Grand Canyon, my sweat was not as much as expected. Sure I gather some holes in the stuff from off track rambling and big pack carrying, but its comfort I cannot fault. And i get it cheap. Did i mention that??
