Fit: 6'4" 235 lbs. 36/37 sleeve. I ordered a size XL and am happy with the fit. The sleeves are plenty long. I'd prefer if the torso was a bit longer. It comes to the top of my hips. Some may like a shorter jacket, but I'd prefer a bit longer. The jacket is not excessively loose or baggy by any means, but I can comfortably wear a light fleece or sweat shirt beneath it.
Performance: I haven't owned this jacket very long so I can't speak on durability. I've worn this softshell for a week and a half backpacking in Europe and it handled rain, wind, and cold temps with ease. As an added bonus it seemed to shrug off the odors of SMOKEY German bars. Lately I wear it all around to work, to run, and camping and find it to be a very versatile fall jacket during temps into the lower 30's. I also wish it had pit zips - I find that my armpits feel especially clammy when I wear this jacket with a warm layer beneath.