Speaking personally, flying something like a Cub after the usual suspects is not just about learning new techiques - it is a whole new way of flying and everything that goes with it. It's like seeing TV in colour after years of a black and white TV
It opens up the world of strip flying, which in turn means you start looking at making more of your own decisions, rather than letting ATC do it for you. For me it meant joining the local PFA Strut and getting involved with fly-ins.
When I was flying spamcans and renting from a club, I had little to do with other members of the club, and my flights were solitary.
Flying slower often means operating lower and with limited panels. You get to read the weather better, as the aircraft are lighter and more prone to being affected by adverse weather (esp crosswinds)
But, you'll find it difficult to stop smiling when you do get it right.