So far, Divinity: Original Sin definitely a quality game. I don't see any problem with the price tag. 27 bucks I spent on it (well, technically 55, but that was two copies, one for my brother). I definitely see myself getting my money's worth out of it.
Got 3 hours in, and just barely began it. Passed through the tutorial, learning how to use the environment for my advantage. Missed out on some potentially good environmental things in the first real battle.
Reports are 20-25 hours for the first 1/4th of the game. And it's got built in modding, and the workshop, so content shouldn't be an issue.
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Can't sleep, clown will eat me.