So I'm about to start Mass Effect 3...

[AT God]

Enjoy the game as it plays, because it gets bad at the last second, avoid making that your overall view of the game, I sadly did and now I have no urge to play it despite it being very good.

 

[votemarvel]

The only thing I could offer that others have not suggested is to make sure you import from the first two games.

Mass Effect 3 felt a little empty for me even with a 1+2 import, I dread to think what it would be like if you started a completely fresh game.