If you liked Diablo and Baldur's Gate then you should love this game.
It has lots of hack and slash but due to the character skills it is no longer just button mashing and the introduction of horses adds a whole new level to the game.
Graphics, sound and music are all excellant. The environments are varied and vast. Tremendous detail in the cities.
Due to the size of the game world you really feel that you are on an epic quest.
Lots of interesting side quests, and not the Fed-Ex type. Main quest and story is good.
The interface is point and click but is skillfully minimized so as not to detract from game play. Camera is zoomable. Animations are smooth. ^ different characters to play. Lots of replay value.
Although patches are out my game has played well right from the box.
Game is over 100 hours long if played right, a great value for the price.