I have around 600 miles on my Corbin Dual Tour and so far, I like it and it's not completely broke in yet. Took the wife for an hour ride and she loved the passenger pillion;said it was a huge improvement over the stock seat which caused her to start complaining after 30 minutes.
The seat is narrower than the stock seat, but provides better support. If you order one, only get 1 backrest. The seat moves you back a little bit, at the expense of room for your passenger. My wife felt like she was wedged between the 2 backrests so I take mine off when we ride 2 up.
Oh, and definitely get the heat. The wife thought is was a little unnecessary til I turned it on, now she can't stop talking about how good it is.