I can only compare mine to the old progressives and 3" blocked up stock leaf pack that were under mine when I purchased it. The ride was terrible as was the handling.
Swapped in new 3 1/2" lift Deaver coils and leafs, all purchased at JBG, along with new bushings. Drove it this way for a while then added new Bilstein shocks. In my opinion, this is the way to go. Matched springs and new shocks...what a difference in ride stability and comfort.