I'm really impressed with how the Volus were handled. I was expecting a whole bunch of characters based around the 'Biotic God' joke from ME2 (And the Adept kinda makes reference to it, but in a subtle and funny way), and the rest are really well done.
I just wish I'd paid attention to the notes on the new DLC, though. I first saw one playing FBW and saw a Volus run past me-all I could think was 'What the ****? We have Volus now?'