I normally use a similar Sprenger bit with my horse (the one I use is the KK Ultra 2-Type, same mouthpiece but kind of a loose ring/eggbutt hybrid because he was getting pinched a little bit in a regular loose ring) My horse goes very well in it.
I also tried my trainer's Myler bits once out of curiosity. He did OK in the level 1 comfort snaffle, but not as well as KK Ultra. The level 2 I thought he responded just a touch better than the KK Ultra, but not enough for me to go out and buy another expensive bit
If I ever see it on sale (or in the tack shop used section) I think I'll pick one up and replace my jumping bit with it (the KK Ultra is my dressage bit).