I think the game was kind of dragged out. I would have prefered it to be around 30-45 hours or something. The story seemed to simple in my opinion to be so long.

Poll Information
This poll contains 1 question(s). 13 user(s) have voted.
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Poll Results: NWN length? (13 votes.)

Do you think NWN had too many hours packed in? (Choose 1)
* Yes, indeed. - 31% (4)
* NO, The longer the better - 69% (9)

Bioware has a reputation among gamers for producing massive games with many options and sub-plots to perform or ignore at the gamer's option. I'm glad they did this, I fail to see any point in paying $50 for a game only to use it for 40 hours.

That said, the Official Campaign can be beaten in thirty hours if you only stick to the main plot.