Got 'em in March and have taken them for a few rides. Incredibly light. Light enough to offset that additional slice of apple pie a la mode last night.
Very very well ventilated. Not for cold weather. Fit like a slipper but might not fit certain types of feet. I'll probably get a custom insert to dial in my arch a bit better.They come with a nice bag so they don't get scummed up by my muddy MTB shoes in the closet.
Note that this uses three velcro enclosures, not a ratchet or dial. I think that is a weight saving thing. If you want the ratchet the next model down comes with that.
I've been using Mavic shoes since they were labeled as Adidas shoes and I'm happy with the brand and quality. Their MTB shoes are more comfortable than their road shoes even, probably because of the added padding.