I bought a pair last week and I love them!
As for the cooling, they have vents but no way are they as ventilated as say DMT's or Specialized, on those you tip your foot forward and you feel the air cooling your feet ASAP, the Bonts have some ventilation but I'd say 50% of those shoes. Today's ride was warm but not hot so not too big an issue, will report back on a hot day's ride. I'm a sweat hog so if they are not ventilated enough I'll know or have a swampy foot after the ride.
As for the shoes well it was like switching from a wet noodle frame to a stiff carbon frame, you feel much better as far as transmitting your power (effort) to the pedals. I even proved it to myself by doing a loop near home and swapping shoes, that was proof enough for me to say they rock!
Pro's: *They fit you dead on with the heat molding,
*You feel your efforts going to the pedals not wasted in shoe movement
*Light weight (I know not a big deal but still a pro)
*Can re-heat mold if not right the first time or just want to tune up
*Stiff
*Upper is also stiff and prevents foot movement to sides or up
*You don't need to tighten them on or strap them tight, just on.
Con's: *Need to be heat molded, need someone who knows what they're doing, not hard but still can go wrong
*Stiff (I know some will not like this as your foot is in semi-lock down mode)
*Not too stylish (yea not a biggie but its a con)
*May need more vents or a vent at the front of the toe box.
*Stiffness causes shoes to sound like Danish Wood Clogs as you walk (not a biggie but still there for those who it might be an issue for)
So after three rides those are my pro's/con's, I'm sure my views will change as time goes on but that is what I have so far.