I never really liked the rulesets, because they did not support roleplaying to my taste: rigid classes, lack of (applicable) skills... I play in a Pathfinder campaign, and we're mostly just murderhobo'ing our way across the land. Pathfinder is a ruleset for tactical combat, not for roleplaying.
This post eloquently describes my problems with Pathfinder -- much more thorough and reasoned than I could write it. I recommend it as food for thought.