Well, my impressions so far are not really positive. Several things about this DLC just rub me the wrong way.
1. The Setup
Unlike the BioWare writing staff and a lot of people out there, I never really cared for Aria. The Narrative in ME2 would have us believe that she's really rather powerful, but in the context of Shepard's mission, she's a bridge troll, an obstacle to be passed (Think about it: Does anything that is happening on Omega actually require a character like Aria? How much of a role does she play after you've recruited Mordin and Garrus and done Samara's loyalty mission?). As such, I was less than enamored by the idea of having to play as her little gun-for-hire; this DLC's requirement to leave the Squad and Normandy behind because "I don't like the company you keep" is a plot point that is so very contrived that my immersion took an immediate hit to the chest.
2. Aria T'loak
Did I mention that I'm really not a fan of her? That I would rather ignore her and let her play at being powerful while rotting away in a little bar on the Citadel?
In this DLC, the character is trying to get back into her comfort zone; unfortunately, that requires a measure of Charisma when trying to negotiate stuff with the sole local merc gang still operating. This is pretty unfortunate because however good an actress Carrie-Ann Moss is when in little personal scenes, she somewhat sucks at delivering rousing speeches.
3. The Music
I'm not sure whether I hit a bug here or what, but long passages of gameplay and cutscenes here were completely devoid of any of the usually rather good Mass Effect score. It's not a very good situation, let me tell you.
4. The Gameplay
It's ME3, with a few things adapted from Multiplayer.
Which would be fine, except that Leviathan did that better; and of course Lair of the Shadow Broker had that fun little driving scene to break things up. I am not sure whether something like this will happen later on (I really really doubt it); but even so, for the DLC pack that was purported to be the largest ever, this is rather weak.
The side missions being offered are also hampered by being tied into a very rigid mission structure that does not allow you to go back and do things you left out. There could have been somewhat more here, I think.
5. The Setting
It's on Omega (duh). That of course means the pallette will not deviate all that far from the established rusty brown we know; although the level design is good, and some of the Vistas rather amazing, it all blends together in my mind somewhat.
If there's one thing I find to be not-entirely-negative, it would be Nyreen, if only because she seems to be not all that into Aria as well.
Overall, my recommendation has to be to skip this one unless you like Aria.
