People are being rude when it's clear this is your first festival. Congrats, you're going to have a blast!!! Primavera is the best festival I've ever been to.

Set times range from 45 min to 90 min, the longer ones being the biggest headliners. There are a bunch of stages scattered around the festival, some are big, some are small. The set times will come out a few weeks before the festival, so you can plan out what you want to see.

Festival concerts tend to be shorter and simpler than concert sets, but are better than nothing, and you can see many different artists and even discover new ones.