I also have a Super Fat Cat, and I love it. The armrests can hold a lot of gear, and it's a very comfortable ride. The angle of the seat can be adjusted to suit your preference.
Inflating the seat requires a different fitting on your pump than the Halkey-Roberts valves on the two bladders. With a dual-pump, it inflates very quickly.
Of all of the Outcast tubes out there, this is the one I would recommend. You'll get years of use out of it. It is quite a bit beefier than the other Outcast offerings, so it should hold up better over time.