Made the switch on all of my bikes and I have no regrets. Simple to install with rock solid performance See ya presta!
The valves were very easy to install replacing the presta valves on several bikes. I have found the right-angle pump head adapter unnecessary as the smaller adapter works well with all of my pump heads. I will probably order another so I don't have to move it from pump to pump. I've put extra valves in some spare tubes but it can be done trail / road side in a pinch. Less important, I can take the valves with me if I ever sell the bikes or wheels. Win win!
These valves are the way to go with electric pumps that is taking over the market. Stock valves on those pumps need you to hold onto the pump to keep the seal. And the pump gets hot while in use. The clik valve allows you to let the pump go. The connection is secure and simple. Start the pump and chill out until the tire is at psi you set and that's it.
I have recently upgraded all my bikes to Clik valves and will not be changing back. It's an excellent system that I would encourage everyone to adopt.