This game is amazing! I haven't played the first game either, so I don't know how this compares to the previous one, but I love so much about this game! The diversity of skills, classes, and types of weapons and accessories are all major things that were great in this, as well as the battle system.
The music and voice acting in this game were also spectacular :)
There were also a couple things that could have been done a bit better but they don't really affect the game much. For example, you get so much gold, but there's rarely anything you need to buy unless you somehow need to buy dozens upon dozens of healing potions. The other thing is most battles seem to be way to easy once you get control spells like slow, sleep, and stun-inflicting skills; I think either they should have costed more MP, or have less chance of being successful (I found them quite useful, but they were pretty over-powered).
Overall this game is amazing though; I'm still playing it, and it's very addictive ^^
P.S. Nice Fallout 3 reference in the tunnel entrance ;)
(Tunnel Snakes Rule!)