Still playing.
That said, there *are* problems.
Loot is a mess. Difficulty is a mess, because loot is a mess.
I'll 'splain.
Difficulty levels go thusly: Normal --> Hard --> Challenging --> Heroic.
From Normal to Hard is a bit of a jump. From Hard to Challenging though... Hards can be soloed pretty easily, but Challenging is tuned for a 4 man group. So, you'd *think* the loot that dropped from Hard would help gear you up for doing Challenging with your friends.
Nope. Hards drop the gear you need to do Hards. Challenging drops the gear you need to do Challenging. There's no real progression path. On top of that...the RNG here is *punishing*.
I'll 'splain that too.
You kill a boss to take his stuff right? Well, that boss can drop anything. Any piece of armor (there are 6 slots.) or weapon, or sidearm, or weapon mod or armor mod. So you have RNG on what drop you get. That's 1 roll of the die.
Then, say a weapon drops. There are 5 classes of weapon (AR, SMG, Shotgun, LMG, MMR). that's level 2 RNG (Its similar for gear pieces. They can drop as normal, yellow "High-End" loot, or gearset loot (of which there are 12 sets. Not *as* bad, cause different activities only pull from a certain set of gear, but still annoying)). So, now you're 2 layers of RNG in, and you have your weapon drop, and its an AR.
The third layer of RNG is what *model* of weapon drops. So, your AR that just dropped could be an M4 variant, a G36, a burst fire SA-58, etc.
So now, you get your AR, and its an LVOA-C that you want. Layer 4 of the RNG is its damage roll. The weapons that drop have a varying damage roll in the gearscore range. (163 GS weapons are 5000 - 6500, 182 is 5800 to 8000 and 204 is 7000 to 10000 for example.) So your weapon could have crap damage for its range, and a lower GS weapon could actually be better.
And the last layer of RNG is the talents on the weapon. Say your LVOA-C has a good damage roll. It has 3 talents to unlock with your stats. Perhaps half of the available talents are absolute crap. another quarter are alright, and the top 25% are pretty good. (They introduced a talent reroll system in the last patch to alleviate some of this. And it *has* helped.)
TL;DR to get the thing you want is an absurdly low chance. There's no real definite progression path. Like WOW had Heroics. You get loots, sure, but you get tokens too, so as long as you play, you get *something* cool eventually.
That said, its still a lot of fun to play with friends. And, it's only 4 mos old, so they're still working on it.