I am making my way though Act II right now, and I would be playing if I were not at work <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />. I did not play Divine Divinity, so I don't have that to base say if this is "better" or not.
So far, I enjoy the game. There is enough of story and humor to keep me going. Except for the Inventory, the interface is functional. I was able to figure out how to work with/around its quirks with the Demo.
The skill systems is novel, and at times a little too detailed with the ammount of skill points per character. Though the I like the unlearn since it allows me to experiment with only mild risk.
One thing I like is that I can sort of choose what mood I am in at the time. If I want to feel good and kill lots of things quickly, I pop up to the Battle fields. If I feel like being "social" I do some side quests, or I make progress on the main story arch. When I get tired with one, I go to something else. It allows me to pace the game for myself.
Right now, I don't feel like I am suffering any shortage of resources, either gold or potions.
Right now, I would give the game a solid B+. It is worth the money and entertaining, but not a must play for everyone.