I just received the boots, so I have not worn them for long outside.
All I can say right now is that they are very comfortable.
My feet are large (size 10 womens), so I was concerned with the fit, but I bought a size 10 and they fit very well; no need for extra socks or being too tight.
I primarily purchased these because I needed a boot that wraps tighter around my calves so stuff won't get in.
And I wanted a boot that was water proof and one that can be easily cleaned when sloshing around in the mud/muck.
Our weather is not yet cold, so I will have to write later about how these boots keep my feet warm in the snow.

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These boots worked great this past winter. My feet never got cold in the snow.
I like the fact that they clean real easy, they're comfortable with or without socks, and they're winter-proof and water-proof.