I have SuperSprings on my '01 F250. They were easy to install and they work great for my setup. Cheaper than air bags also. If they cause additional bounce I have not noticed it. Like OldCoot says though, they are not adjustable unless you do some minor wrenching. That is not an issue for me as I set them up for the weight of my 5er and just leave them set. The SuperSprings appealed to me simply because they were a "install it and forget it" option. I simply didn't want to worry about airing up or down air bags and I definitely didn't want another gauge/monitor in the cab of my truck. I also didn't need the adjustability.
2001 Ford F250 7.3l converted to F350 specs
2014 Flagstaff 8528RKWS
2 - 2006 model year Border Collies