Exactly how much grinding's involved in PSO? And how many quests like "Get 50 of these rare drops from these rare monsters" where you got to fight off 20 kill-stealers and 40 people trying to kill that one monster that spawns every 5 minutes for that very same quest?
Quite a bit of grinding, but surprisingly, the game always keeps on being fun to play. Regarding quests, they're more like "Defeat X number of X monster". There's other kinds of quests as well, of course, but no quest is ever of the impossible kind. Some quests are tougher than others, but that's only logical.