I haven't ever ran them, but unless they turn the suspension into a covered wagon I would be surprised if you get the sway control you are looking for, and at that your kidneys might complain.
If you need more load leaving than the airbags can provide you are probably overloaded, airbags offer up to 5,000lbs of load leveling.
Even with my low center of gravity TT the swaybar was night and day, and that's the small swaybar. I had tried all different levels of air and nothing came clost to the effectiveness of a swaybar. The increased air did help, at an decrease in ride quality. Any form of spring that corrects for sway is going to make the ride very stiff, at least a sway bar doesn't effect movement when both sides of the axle compress, as in a dip in the road.
The bigwig on my dad's camper was also night and day, and that was with the airbags at 80-90 psi for a level ride. He as a 2" front level so has to run a lot more air than most for his weight.
