Apparently there is some smoked malt in the beer but I found none of that. I also did not get much pumpkin. It's a nice enough beer but one was enough for me before hitting some Punk IPA. Not so for my wife who loved it.
Trouble Brewing also had their Pumpkin Ale in tap in various pubs around the country and I had a pint of that a couple of weeks ago. It's nice but again, the spices dominate the flavour leaving very little hint of there being pumpkin, other than a general starchiness. It does work very well and I quite enjoyed my pint, though again, one was enough before I wanted some hops. You should read the blog post I linked to as they explain how they made it.
Happy Halloween or Oíche shamhna shona daoibh.