I had an absolutely horrible experience with airbags. The dealer set them up about 45 psi. The bouncing was so bad I did not make it out of the parking lot. We dropped the pressure to about 15-20 psi. The ride was still bad so I got Rancho shocks and set them at maximum. There was still some bounce. Unfortunately the shocks gave a stiff, jarring ride.
Later on I got SuperSprings and the ride was greatly, greatly improved especially since I was able to back off on the settings for the shocks. I believe they are somewhat adjustable but that is a trial and error process that involves jacking up the rear end.
On my current truck, I have been able to get by without adding SSs. Instead I went to Timbrens. Way, way better than airbags. They help minimize rear end sag and increase the strength of the rear suspension without the bounce and sway. Even better when the camper is not on the truck they are not engaged and do not affect the ride.