Warning! Excessive exposure to CO2s will cause intoxication
Pros: These bindings are incredibly light and stiff without sacrificing comfort. The super capstrap is the best toe strap on the market, the ankle strap has ample padding, and the ratchets cinch tightly while loosening quickly and easily. Adjusting the positioning of the capstrap and ankle pad on the straps is made easy by a tooless screw system, so adjustments can be made on the fly. The baseplate is all one piece, so you don't need to worry about parts loosening over time, and the padding on the baseplate is cushiony enough to dampen hard landings but not so cushiony as to sacrifice response and feel. The gas pedal is fairly easy to adjust and allows for a nearly perfect fit to any waist width. The highbacks are easy to rotate, and the forward lean can be adjusted more finely than lower-end Burton bindings. All in all, this has to be one of the most customizable bindings on the market (along with the nearly identical C60). If that isn't enough, the lime bindings are guaranteed to get you a compliment or two each time out.
Cons: Time will tell, but I'm not terribly confident in the integrity of the highback. Also, one of my pet peaves with all Burton bindings is that the baseplates are not lined on the bottom with adhesive rubber to prevent damage to the baseplate when securing the bindings to your board.
Other Thoughts: After riding these, I can't stomach the thought of riding the heavy and unresponsive (by comparison) P1s. I have a hard time thinking that the C60s are much improved over these. The only real differences I can tell are a potentially lighter and stiffer highback (with more carbon) and a less cushy anklestrap to give even better response.