The fast leveling was actually one of the things that put me off the game pretty badly. You end up with quests to three different maps with no idea of what order you should actually be doing stuff in and you haven't even finished picking up the side quests for the map you're currently working in. You get basically 0 xp for doing anything else in your current map but I can't stand leaving a map uncompleted. Not to mention you end up more or less one shotting every enemy so the game ends up becoming incredibly boring. Don't get me wrong, I love some grinding, RO is still one of my favorite games to date, but at least I had to pay attention most of the time.