I have made this, I used spice cake mix instead of yellow. Also a pinch of cayenne pepper adds a little more spice without to much heat.
This recipe is good. It made 24+ cupcakes, that were more like cake then bread, with definite taste of molasses overtones which were a bit too much for my personal taste. They baked for 18 minutes in my oven to perfection. I've been making pumpkin bread for many years and i wanted to try something quick using a cakemix. However, i still prefer my more conventional "Pumpkin Bread Recipe", which is slightly more dense and moist (more like a bread), without the molasses which, to me, allows for more of the pumpkin flavor to come through.. But this recipe is great for a "quickie".