I brewed this a couple of weeks ago and it was a huge hit.
A couple things that I noticed and or changed:
I used the Ralphs store pumpkin pie filling. 2 cans.
I went a little heavy on the spices...but my wife loves getting cheap spices from BigLots so I am sure they were old and cheap.
I brewed this as my 3rd beer for the day. I really don't remember much about the process other than a beer in my hand and a great time.
Now I ended up with 5.5 gallons of wort. With Trub loss I netted about 4 gallons of beer. I did notice that this beer fermented quickly but had way to many spices to it. So I let it sit in the fermenter for a couple of weeks. Not long just about 3 total after primary fermentation. This left me with a very dry clean pumpkin ale. Most of my homebrewing friends and craftbeer loving friends loved it.
I will brew this again.