
Just finished it, a soldier at level 27, maxed out the Paragon points. Wasn't able to unlock the other side quests, though. Man, scanning planets take time. All in all, the game said I spent less than 50 hours playing it.
So this is my ME2's ending:
My Mass Effect 1-imported Commander Shepard banged Miranda (there's a possibility that a male Shepard would bang either Miranda, Tali or Jack), went on to do all loyalty quests of the squad members, went on to the Collectors' base and blew the thing up before beating the final boss. Somehow I get the feeling that Saren is a tougher boss than the final boss of ME2. The Ilusive Man was irate with the base's destruction. Mordin and Zaeed died in the process.
I'm wondering how to get Shepard and the entire Normandy squad killed. I'm going to keep the save game for ME3.Overall, great game, great story and another +100000 to BioWare. I honestly can't wait for ME3.

What I don't get is that the game options have this "Vehicle Controls" option, but there's no part in the game that you'd be controlling a land vehicle. Or maybe that Hammerhead DLC is what it's for.
For now I'm thinking of replaying the last mission and get everyone killed, or start over with a new one and turn it to a badass Renegade character.
EDIT: I might have to replay the final mission to
get all squad members to live.