It isn't as flickable or as loose as the Fun. But, attainments are much easier. Slip out of a surf and you still have a fighting chance of paddling back onto the wave.
It's extremely lightweight. That is a plus to many but some prefer a kayak that will take a beating. The seat position is easy to adjust. The boat has the usual Jackson outfitting; that is, light, simple and can be repaired in the field. The seat and forward bulkhead (footrest) are secured by cords, which are prone to stretching.
I'm not wild about the color combos. The latest models appear to all be fitted with a GoPro camera mount on the deck, whether you want it or not. Jackson used to brag that they don't put any unnecessary holes in their hulls. Now they're selling you out with this.
Bottom line is that you have an agile and fun ride. But, you might be able to achieve close to the same results without the grabby tail by going down a size with another river runner.
The Fun Runner has good speed plus allows me to some basic front end surfs. No, it is not a play boat. If I want to play and run a river I have my Jackson 4 Fun. If my preference is river running in larger water or something I want that volume for, then my Fun Runner is my go to boat. It has good speed and volume. The volume in the bow and stern help keep the boat on the surface. The bow volume too allows me to wear a larger boot than normal for those long grunting portages. The boat too turns well and is easier than some boats for rolling.
Negatives: it doesn't do everything, and no boat does. Also, like others said, you either love Jackson Outfitting or you hate it - me I am in the middle. I own 2 Jackson ww kayaks and that speaks for itself.