I love my airbags and onboard air system. They help keep the rig level, although it didn't need much help in that regard. The headlights are like driving normally, but I love having air to air up floats, tires etc wherever the truck is. I also like the fact that I can adjust on the fly and take some of the 'jolt' out of some of the interstate expansion joints.
2012 Sandpiper 365SAQ weighing @ 15k, Onan, 2nd air, slide toppers, TST
2013 F350 6.7L Lariat 4x4 CC DRW,Viair 1007, Ride-Rites, Edge CTS, B&W
2001 Chevy 3500CC DRW 4x4, 8.1L, 4.10 gears w/ Detroit TrueTrac
2001 Ford Excursion Limited 4x4 7.3L,V/B Spring Mod, ProComps, Hellwig Swaybar, & other 'Necessities'