Okay, still playing this game and still enjoying it.
I've beaten the storyline - not bad, not bad, decent hook in for the next installment. Arkfalls are less fun now, but they added in Sieges (horde modes, effectively) and zombies, so there's some other co-op fun to be had. PvP is doing a bit better; there's fewer cloaked shotgun-bunnies, for one.