I liked it well enough. Compared to my Native Ult12 seat I took apart and mounted on homemade rails, they both showed the same issue...there is a real or perceived feeling that you're sitting on less of your rear end since underside of thighs are raised for peddling. When relaxed with legs down, and not peddling, both seat were major comfy. Most know how aging males lose rear padding as it moves to belly, you know what I'm talking about.
Not sure if you can see it on the Jackson vid, but I had a backrest cannibalized from one of those cheap mesh lumbar pad thingys like they made for cars way back when. That made for air circulation behind my back, similar to the mesh PA or Native seat.
Another issue was I had to mount the J seat a bit rearward, which put its rear frame over and just behind the Revo's upright divider between the seat and rear storage bay. That high point was slightly hitting my tailbone if I sat straight up, but if I scooted just a slight bit forward, no problem. I was thinking if I beefed up the backrest to push me forward just a bit, all would be just fine. I'll probably take the seat on an all day fishing trip soon to really test thoroughly. I did that with the Native seat, but tired after 4 hours, so I changed it out with the Hobie seat I stashed in the hatch for the ride back to truck.
I'm 6ft, and pedals were set at #2 to get almost full extension while barefooted, I usually have some ankle flex too, and I don't drive the pedals hard, just normal cadence.
And though I'm normally not skittish with balance, I fish with a hard cooler behind me. If I load that with fish, that certainly will add to balance issues, not to mention more rear load pushing end of boat down.