Pros: fantastic universe, strong and likable characters, deep lore
As a huge sci-fi fan I feel like there have not been as many good or great video games in the genre as there should be. One of the first and greatest games I've ever played all the way through was the original Knights of the Old Republic. As a life long Star Wars devotee, all I wanted was another game like that, great RPG elements fused with the world of Star Wars and things I already knew about and loved. This is what took me so long to get into playing the Mass Effect games. I know Bioware has done some excellent games in their time (including KOTOR) but I was hesitant to enter a new universe of people and races and conflicts I wasn't already familiar with. I finally made the jump after needing something new to play and I was not disappointed. I think ME2 is the best game in the series. There are elements from the third game that I wish had been implemented in the second one but the storytelling and worlds of the second game were up there with the best of them. I also think the sequel has one of the best final segments in all of video games. The weapons and the combat system are excellent, all the characters are diverse and crucial to the overall story. Traveling the different planets contributes to the sense that you are very far from earth. The musical was also instrumental in playing to the deep science fiction feeling the game gives.