Mine works fine. Some people aren't happy with it, but that's what happens sometimes with super-lightweight parts. There is nothing to address, if someone is concerned with it, they have a stiffer but slightly heavier model available. Nothing says you have to buy the whole groupset together.
+1 I have no complaints. The shifting, ergonomics and lightweight more than make up for any possible annoying characteristics I've heard mentioned. Just try it then report back. GL