I bought a Large-Tall in Moss, and it fits perfectly. It is trim in the body (I have a 36" waist) but fine on me, as long as I'm not wearing something bulky underneath. I'd guess the sleeve length is roughly equivalent to a 35" shirt sleeve. The fabric is SO soft, and the jacket is super-light. Zippers work cleanly, with no snagging like I experienced with an older less-expensive LLBean jacket.
ProsGreat Value, Comfortable, Performing as Expected
I bought this item, which I would describe more as a down sweater, because it's highly compressible and can fit into my already over-crowded pack. It's suitable for an outer jacket in mildly cold weather, but it's more of a layering garment to be combined with a waterproof jacket when it's colder or wet. I'm 5'6" and 145 pounds, and the medium fits me perfectly; I've had no problems with the sleeve length or cuffs. I haven't had it long enough to assess its durability, but with care, I expect to get good service from it. Compared to other national brands, it gives great value at a considerably lower price.