Been playing the last few days still enjoying the game and I'm still on on novigrad moping up question marks, think I've done the majority of side quests. I am level 19 and can kill stuff quite easily in their early 20s. I am wearing enhanced Griffen gear which seems pretty good. I can leave for skellige but I'm trying to 100% the maps as when I finish this game I won't come back to it as my game time is limited and I won't ever get to play other games. Probably won't finish this game till Christmas.