I will agree I found some of the side quests and particularly the supplies encounters extremely repetitive however now me and a few friends on my friends list (@Garacesh included here) are all level 30, doing the daily missions and running the dark zone L32 bosses I'm finding great fun (even if I'm a relatively nooby L30). With the big free update coming next month that adds Divison's take of Destiny's raids coming, it's only set to get better. I'd say stick at it and get to 30! I'm personally really enjoying what end game has to offer despite what I've read online.