i bought a pair of these!! Yes they are very comfy and warm..... But...... Within a month of wearing them the outter layer started to come apart on one boot!! Not sure if it was a deffective boot or what the issue is! Not once has my foot gotten wet though!!
I have worn a lot of brands of boots over the years, and I think that Thorogood is the best brand there is for a work boot. They are American made and are built to hold up. I prefer the ones with the white wedge soles, even though I catch a little flack for wearing them, as they are a little flashy until you accomplish enough work in them to dirty um up.

http://www.ariat.com/RAMBLER_WORK_ST_M_FOO.html?dwvar_RAMBLER__WORK__ST__M__FOO_color=EARTH#start=1
I have these for four years still in great shape. Comfortable from day one. They a great consultant boot easy on and easy off. Very important for the company man shack.