Speaking as one who has sat on the back on many occasions, I have to say I've never been on this kind of seat. But to me it does not look very comfy from a passers stand point. It looks to be very narrow and not much cushioning, making for uncomfortable long rides. Again just my opinion and I'm sure it is much more comfortable than the 1950 hardtail panhead I spent the first 5 years as the passenger on
It's hard to complain when you don't know anything else