These boots are very comfortable and look great too! I wear a 7 1/2 in gym shoes and ordered these in 8 based on the reviews i read here. There's enough space for thick socks but they're a bit loose with regular socks. My feet get cold easily so I don't plan on wearing them with regular socks anyway.
They are definitely a little tough to get into once you tighten up all the laces, but for the extra warmth, it's well worth it. The sole is thick and very comfortable. No sore spots at all! Will update this review once I get some good snow to test them in, which should happen pretty soon (I live in southern Iowa).