I personally think it all as to do with what you grew up on. I grew up in the time when Shimano was a distant 3rd/4th compared to Suntour and Campy, and I remember the indexing crap they came out with back then. I am a Campy person. Those now a days that have grown up with Shimano as the dominant supplier tend to like them more than Campy. Campy has also distanced itself from riders that could bring it back by limiting component choices and different gearings. But for workability, old and new, I don't have problems with my campy. I adjust them once when setting them up and don't touch them again unless the parts come off the bike for a different build. I like things I don't have to worry about.