My wife want to ride with me sometimes, so I'm looking at 2-up seats. Anyone have the SE Dyna 2-up seat? If so, how comfortable is it?

 

If you're referring to the Dyna CVO seat I have one. It's great for the rider, it sets you low down in your bike however, your wife will probably not care for it as the passenger portion is hard as a rock. It's the seat in my sig.

 

try the mustang tripper. Wife and I ride all day day in and out on this seat. Perfect for both rider and passenger. It comes in a single piece 2up version and the solo and pillion like what I have. This seat is way more comfortable than the CVO seat.