1) shifting is flawless so far.
2) Front derailleur makes a cool whirring sound when it moves.
3) Derailleur aren't bothered by mud and debris.
1) Buttons are too close together. Sometimes one of the buttons is not right where I want it when I want it. I think I will get used to it though and it won't be an issue later.
2) It doesn't make me any faster exactly, it just keeps working when the normal shifter set up might get gunked up. I just lost one excuse why I don't do better.