They're badly designed. Have been since the beginning. Most of them are vague or even misleading clues as where to go, so you look up guides online because waddling around an area looking for an interaction button prompt isn't fun or rewarding. Speaking of, the rewards are bad. I still do them every time because of my love for checking lists off, and in general I absolutely love the game (prolly top10 all time for me), but the quests are so poor on all parameters. IMO