I finished my first play through last night (ParagonShep). Wow, what a game. I can say, without any hyperbole, that this is the best CRPG I've ever played. With a couple of caveats:
-- The xbox version I'm playing has a few bugs and a few polish issues. Specifically, I've seen it crash when loading a new screen and I've seen a number of animation gaffes.
-- The experience of Mass Effect 3 is highly influenced by playing through ME1 and ME2.
-- All three games are on the action side of the continuum. People who do not like twitch games are probably not going to agree with me.
The strongest thing I can say was that I felt like Bioware really delivered on the concept of a trilogy. Decisions you made in the first game trickle down into the third game. Oh, some of them don't have as much of an effect as I would have liked, but some of them -- yikes!
On the whole, ME3 does a great job of pushing emotional buttons. Loss, despair, hope, love, sacrifice. All play big parts in Mass Effect 3. The terrible danger of the Reapers introduced in ME1 and talked about in ME2 is here...and it is pretty devastating. Not everyone is going to make it out of there in one piece. There's echoes of Babylon 5 and Battlestar Galactica in here but really, they've established their own universe with its own style and emotional resonance.
I still need to think about the ending. I know some people are disappointed by it -- I won't say more because there are pretty big spoilers here. But ultimately, I felt it was reasonably satisfying.
The missions are fun, but more than that, they have an urgency that wasn't there as consistently in earlier Mass Effects. A comment I made a few days ago is that the suicide mission at the end of Mass Effect 2 is now the new "normal". Many missions feel like they could go south at a moment's notice or that you have to move NOW NOW NOW. Or that when I choose a team member to go do something, that I might be sending them off to die. I give a lot of props to Jennifer Hale, the actress that plays the voice of female shepherd. Her energy level was high and she really sells the urgency (and the desperation) of the missions. And really, they just did amazing stuff with the engine and the missions. While there's always a certain amount of sameness to the bad guys you fight in these games, so many of the missions felt fresh.
The game mechanics are really really solid. They took some of the best ideas in ME1 and ME2 and mixed them together into a nice blend. Fewer mini-games makes the game play a lot faster too. "Streamlined" is a word I've used throughout the game to describe how Mass Effect 3. The dominoes are falling at this point, so slow mechanics have less of a place in the game. Beyond the fact that the mini games weren't that difficult, they also slowed the pace of the missions/story, taking away from the dramatic tension they were trying for in ME3.
I haven't tried multiplayer yet. I'm a little disappointed that you need to do multiplayer to get access to some of the endings. I need to figure out wants to play multiplayer so that I don't have to deal with internet morons.
Because I need to focus on other things for a little while, it is going to be a couple of weeks before I put a lot of time into RenegadeShep's story. And that's too bad. I really want to start it up now. And for me, that's the most telling thing about all three Mass Effect games -- the desire to start a new game right after the end of a game. In both the previous games, I played three full games at normal, hard and insane difficulty. And I'll probably do the same here.
The prospect of playing some of these missions on insane difficulty scares me. But that'll be my third play through. I'm more worried that RenegageShep's bad decisions in ME1 and ME2 are going to haunt me through my second game. I also find it interesting how the sense of desperation made me more willing to choose renegade options for ParagonShep. It felt natural that Shepherd was starting to lose it.