My dad bought these...he's a sucker for new gadgets.
They're pretty cool. All the data tracking works properly, and the maps feature on the computer is pretty cool. Downsides, they are big. And they look big on a person's face. Also, you don't really want to be looking at the screen while you ski...more for looking at your top speeds on the lift haha.
That said, I think they're pretty sick to have. Especially if you travel to large mountains and want to track your day. We did this when we traveled out to France.