I had a heated seat on my 2006 Goldwing and, frankly, it didn't do much for me, including the three days I rode in 25-35 degree temperatures on US395 & US97 three years ago. Heated grips were much much more important. So, when I rode down to Hollister from Portland a couple of weeks ago to have an seat installed I told Corbin to skip the heat.
Love the seat, I did a couple of 170 mile non-stop legs on the way back, an impossibility on the stock seat. By the way, it's worth doing the ride-in fitting if at all possible if you're north of 200 lbs, their 'standard' fit was a bit confining.