Excellent boot.  At first I thought it was a bit snug in the foot, but that was only the cushioning all around the foot.  After wearing it a bit, it has accommodated itself to my foot very well.  My socks don't ride down either!  Here in Maine, I really need a good, warm, water-proof winter boot, and this is it.  I can't praise it highly enough.

Because it is new, the zipper is a bit stiff and I don't want to force it all the way to the top yet; I know from experience that it will ease up over time.  In the meantime, I push down on the zipper tab to lock the zipper in place.  Also, the top [opening] of the boot is very snug: I am assuming this will loosen over time as well, with wear, as the puffy boot tongue flattens out.