What do you think about these types of Ugg boots on guys?

I'm not sure whether I like them, to be honest. I guess it depends upon the way you wear them... and whether you're masculine enough to rock the "fleecy" bit at the top of the boot, which strikes me as a bit feminine. If that's the cuff section, and you can cover up the fleece, then the boots look quite nice, warm and comfy for a guy.