Biggest initial concerns? Zipper, hood, & fit. I like to leave the front zipper down a bit. I thought the entire mechanism would get in the way or look funny. It is hard to see until you try it on but it really works nice and the collar says out of the way. I like it better than the straight zip since it is much easier on your chin. I am NOT a hood person but, based upon where this jacket could go with me, I want it just in case. These stow systems can get a bit bulky but, when I carefully stored the hood, it did not get in the way at all. The roomier fit looks really nice with just a base layer on or several for real cold days. Many shells can look like you are wearing a huge trash bag. Not this one!