Infuriating waste of time. Slow nonsense pace, clumsy flight mechanics and boring quests... the clue's (glowing drawing) will have you flying around an area for way to long trying to find a spot that poorly resembles where your supposed to go. Sometimes the drawings are detailed enough to make sense of, sometimes they aren't unless you can recall the area from a time you have already been there(which is unlikely). Mess up one flight and it could take minutes to get in position for another shot.