Jackson claim the Fun is the perfect crossover between river runner and dedicated playboat. Well I wouldn't want to argue with EJ but... it's definitely more playful than river runner! The back end is extremely lively. I'm a very experienced paddler and I found the stern very dippy with lots of corrections to prevent unrequested stern squirts! This was especially bad when ferry gliding or breaking in.
It tracked well and handled waves easily and it practically surfed river waves on its own!
I took it surfing in the sea and was surprised how easily it got back looped but it's a Jacskon so it's incredibly easy to roll. On the ocean waves it was fantastic fun very very responsive great on edge and recovered from ridiculous angles.
All in all if you want Fun down river get one. However if you're starting out, I'd give it a miss, far too lively you'll find yourself on a steep learning curve if you get a Fun as your first boat.
Final note outfitting: Jackson outfitting is weird. You'll either love it or hate it. Personally, I have grown to love it!