I was blessed to get the only eTap groupset my LBS received in March. The shifting has been precise, responsive, and confident. I quickly became aware of a couple of unexpected benefits. When you need to slow or stop quickly (such as at a red light) it is very easy to shift up to an easy gear while remaining fully in control of braking, making re-acceleration much easier. I noticed a massive improvement in overall shifting precision during a crit race on a technical course that included a 180 degree hairpin turn - I could brake late while still having very precise control of my gear selection, allowing my to stay fast going into the turn and accelerate efficiently coming out of the turn. Since installation I have had to adjust the indexing one time - it was quick & easy to do and worked perfectly. I now also get my gear data from eTap sync'd to my Garmin Edge, which is interesting. Overall I am very happy.