The first game was surrounded by a huge hype when it came out based on which I bought it. The graphics was OK, the story is almost non-existent. Side quests were really boring - go to level X, kill a big bad guy. First 2/3 of the game were really easy, the last part was really hard. It became very boring for me after I descended several levels into first mine. I had to force myself to finish it.
This is coming from a guy who finished Titan Quest, Diablo 1 and 2 (all of them with all the add-ons) on the highest difficulty levels. I am not even sure why it was so boring. Lack of a story or good atmosphere? Diablo and Titan quest have both.
I might sound like a troll, but I am not looking forward for the next game. I still might give it a try if they come up with Linux version. The game will probably have hard time to compete with Diablo 3.
Ask five economists and you'll get five different explanations (six if one went to Harvard). -- Edgar R. Fiedler