After 2 weeks I am Light Level 27 and have a Legendary Weapon. I only got the legendary Weapon in PvP. all of the other gear I bought from vendors and it was 100% farmable and I just did what was the most fun at the time (Strikes, Daily, Weekly, PvP, whatever).
I never farmed a stupid cave for even 10 minutes only to complain about bad drops.
I REALLY have no idea what people are about who claim the loot system is broken. It is random, yes, so what? You can get pretty much perfect gear after 2!!!! weeks of playing what is fun. No Cave-Farming needed.
I just need to farm now to upgrade all my Legendary stuff, but that is like mining in every other MMO and actually is kinda fun, just change the locations, throw in a public event here or there. After an hour take a break and do some PvP or Strikes (which give you rewards towards gear) etc.
A fact: In WoW Vanilla (counted from the day it launched) you got your first epic probably after 2 months of playing very very much, I didn't see people complain back in the days.
And about the "Bullet-Sponge" bosses. I don't know, if the boss just dies after a minute that wouldn't be much of a bossfight... The adds keep the fights interesting enough most of the time.
Yes, I like the game, so could you if you stop the cave-farming loot-hungry stuff and just enjoy what the game has to offer, you will get your Gear naturally.