It's difficult to improve upon what has already been said by others. This is probably the best cRPG since 2000. Everything is incredibly polished, the game is LONG without being boring, and quests make sense in the context of each environment (something sorely missing in, for instance, recent Bethesda games).

The combat system is clearly defined and rewards clever gameplay, while at the same time not giving the computer an unfair advantage. That said, battles will DESTROY you the second you don't take them seriously.

I wasn't really all that impressed by DOS 1, but part of that was that I felt that my characters didn't have much personality, and that made it difficult to immerse myself in the story. The brilliant inclusion of origins characters brings this missing component to the table nicely, and the characters themselves are varied and interesting - they may well put you into dangerous situations, close off quest options, or open doors to new ones.

From a technical standpoint, the voice acting is well above industry standard - I don't believe I've heard an awkward line in 70 hours. The graphics are highly polished, and most abilities and attacks work precisely as expected (a few occasional glitches aside). The story elements are well put together and flow nicely (even the "silly" quests), and include some morally ambiguous situations that you have to actually think about.

Undoubtedly, this is a game that we're going to compare other RPGs against for years to come, a real lesson in maintaining old school mechanics without the old school baggage. A complete masterpiece, and if you don't think so, then cRPGs are probably not for you,