The good: I am 6'3" 195lbs with a 43" chest and 34" waist and the Large fits perfectly. The sleeves are long enough for me. The sizing is spot on. The sweater looks great. I have worn it casually more than in active settings but I am sure it would perform well. It is super soft and comfortable. It is warmer than I thought it would be.
The bad: It piles after some uses, washings and wear no matter how careful you are with it. It offers no wind protection (not that i was expecting any...). It's an expensive sweater.
I like and wear this so much that I will be getting another one of these. Its a really nice sweater. Highly recommended!