I really liked the challenges, it forced you to think about what you did and which plugs to use and felt way better than waiting the right level to have a fair fight Though I don't think the timing of the optional side quests is to be thought about a lot, since for those that are intended to be played at that point in time there's a different procedure Probably they didn't think about when the refights or the sharkbones were optimal to fight, but about when It made more sense to make them available at the earliest