This game suffered from one big mistake. Apparently none of the designers had heard the old saying, "if it's not broken, don't fix it." They revamped the skill system that was very very good from DD into a system that required too much specialization. This in turn created a sense of boredom on the character development side. They also made the first dungeon as boring as possible. Seems they didn't take the many hints they received from the first games feedback (starter dungeon there sucked too).
If you manage to get through the opening 10 hours the game definitely gets better, never finished it though. There is some enjoyment to be had here, but if you are looking for the same genius as DD, replay that game with a new build instead.