Super game so far, unlike me2 I quite enjoy the combat sections. The real quality though is seeing the old characters return and play a part in the story, some bigger part than others. I swear I leave the citadel for one mission and 5 emails ask me back. The planet scanning thing is still horrible, I wish they changed that.
I've played some multiplayer, it's not that hard to gain galactic readiness but you lose it over time