Like I said, I like the gameplay of it personally. I had a lot of fun with it, you didn't. I'm not really sure what else I can say about it beyond that. I'm not a big fan of shooters, but I like the ME series because it incorporates RPG elements into a game with guns that makes me feel more at home/comfortable playing. It's the right mix of action and strategy.
I'd note exploration as well, but you clearly dislike that too. I'm not going to say "this is what I like about this" and give a long winded answer on it if I already know you dislike it. ME2 *is* the better game, gameplay wise, so if you do like the story then I would suggest continuing the series.
--
:>