No complaints. First time they fogged up and I thought I made the wrong choice; however, they have not fogged up since. I always put my goggles on top of my head on the lift and I haven't had problems with them fogging up.
These goggles are bigger than something like the Oakley A-Frame. The A-Frame fit my face like it was for kids, so this is a better option for people with "big faces" I guess.