I don't mean to become a component weenie but I like things to work - well. The best would be wasted on my abilities but things that don't work well tend to aggravate me. I rode a bike with Shimano shifters that had numbers in the window and I thought that was great for dyslexic people like me because I always shift the wrong way first and that gave it a much better visual for going the right way. Sadly, the bike did not perform to my satisfaction and moved up and lost the visual cue.