I have one, and have commuted with it to work in the snow and even on a nice fall day. Mine is really not ideal with the gearing and the knobbies for the road. I think I maxed out at about 14 mph or so? So even though it rides really nice, the commute is very slow going especially when I am used to riding in the mid to upper 20mph range.

One thing to add, they will go through snow quite easily, until you get into the 6" + range. After that, it becomes rather difficult. A foot of snow? Not going to happen. You will be pushing your bike and they can be rather heavy and the going really gets slow at this point. I know this all too well. This is my previous fat bike on a commute in a blizzard. Foot of snow on the ground already, and no part of the road or MUP was maintained at this point. Nothing holding the bike up but the snow here. My 7.5 mile commute took me approximately 1 hour and 50 minutes.