Having used the bus in a number of other UK cities, I can say with some confidence that if "the app" and payment methods is what bothers you then you have little to really worry about.
@gembo mentioned Bath as very car centric on the just eat thread. He's right, nobody uses the bus there, it's unreliable, expensive and hence people drive into city centre - my sister and family for example - journeys of a mile or so.
Our bus service has challenges, but it stacks up well against everything except London imo.
Contactless early next year sounds good. I really don't see why they would mimick the TfL capped scheme, I would be very surprised if this makes much economic sense on our small network.