I made the Pumpkin extract ale from Northern Brewer last fall and it turned out pretty tasty. I've since moved to all-grain, but I'll be making something similar again for sure. I used real pumpkin(though I don't know that it actually added anything) following their instructions. I will say that I was hoping to get a strong pumpkin pie spice flavor, and it was a very light flavor/aroma. You might want to research when/how much spice to add to get more flavor if that's what you're looking for.