So, I'm up to level 18 and only have a few missions left in the game (the final mission and a couple of side missions).
I have zero idea what is happening with the story, but did wonder why all of these different alien races all used the same drop ships if they are fighting each other and seem to have different tech.
Either way, I'm enjoying the game somewhat. I went through the strike on Mars (Cerberus something something) and it was really difficult with three level 16s (using the strike matchmaking option) but we got through it.
Not sure how much more I'll get out of the game. Hopefully the end-game really piques my interest since I'm about out of "new" content.