I have a 24 foot class C E-350 ford based motorhome. On good roads it rides great. Humps are handled with ease. However, pavement strips feel like 6 inch dropoffs. I just drove from south Florida ...
Unlike the other posters, I've been rather disappointed with the Koni FSD shocks. I put them on the rear of my 24' motor home and I really don't think they provided any improvement over my OEM shocks with 80,000 miles on them. The leaf springs are simply not very compliant.