They are warm and comfortable. Good support, runs a little wide. I usually wear a size 6 and that is what I ordered. Being wide is good for me because I have a high instep. Also works with heavier socks. I would recommend the boot.
The first day I wore them was for 5 hours walking through melted snow, slush, mud and water. My feet stayed warm and dry. I expected some discomfort, as they weren't "broken in" but they were very comfortable. I typically wear 8.5-9 and I got a 9 to have room for thick socks and they fit great.
These boots not only held up in a combination of 10" of snow and melting slush, but they provided warmth while in the elements for 4.5 hours hunting. I did layer with a very heavy wool sock and you will need a little extra room if your toes are on the edge before socks. I normally wear a 10 and have a high arch and was concerned they would be too big/wide before I put on my heavy sock, but they were awesome and I could have kept hunting without a problem. I would highly recommend and the price is unbelievable!