Love the Mass Effect trilogy in general. The gameplay didn't have the depth of something like KOTOR, but the shooting was fun and it did have a lot of narrative depth. Yes, the ending was kinda weak, but everything up to that point was superb and very engaging. As far as I'm concerned Bioware created the finest and most interesting sci-fi universe since Star Wars. Maybe there are some books out there with better ones, but I've not read them. In terms of movies and games though, Mass Effect is a triumph in terms of world building and interesting characters.

I'm looking forward to see what they do with the 4th one... I'm just hoping we get to explore the aforementioned universe a bit more. Like, we've done the human thing now. We've been a human Spectre on our human spaceship fighting for humankind. And yet we all know the most awesome character was Garrus. So I'm really hoping in the next game we can be a Turian commander instead. Same formula, different culture, but still close enough to humans that it won't be completely confusing.

Doubt they'll go that route because the world is boring. But I can dream.