Mini review: They are heavier than 50mm wheels, granted, but once moving at speed they are brilliant, perceivably faster than shallower wheels. I'm going to get 52/36 chainrings, partly because of the wheels but also partly because I have got stronger. Freehub body pick-up could be faster but I can pedal through 90% of corners anyway thanks to moving to Speedplay. Sure, they are not the most comfortable wheels in the world but I didn't buy them to be comfortable, I bought them to be fast and they are.
If anyone does buy a pair of very deep wheels, I'll warn you, on club rides you'll cop a bunch of shit. The best riposte is to drop them, they'll be quite after that.
I have been riding them all summer and love them, not just for their performance but also for the smile factor, they just look mean.