Great storyline, old school combat/graphics style. Difficulty in torment is legit and with 5 main factions and a myriad of choices, lots of replay value.
Gameplay is not simply just about slaughtering everything in your path - stealth and non-combat skills will be needed to clear the game.
Monsters don't respawn which means that your experience is limited (in particular, your minions get xp when you get xp); but this is only an important factor (getting minions early means they can level up more by the end game and are thus stronger than 'fresher' ones) in the harder difficulties.
Two minor complaints:
1.) I can't move the screen easily (arrow keys only) since you're usually clicking with your mouse to move the party and its awkward to have the left hand on the arrow keys to move the screen around
2.) A 'solo' style is virtually impossible on the harder difficulties (even with all your points in solo stuff like spells and stats rather than creations)
Awesome game, and great bang for the buck!