Icons are rebuildable but fewer shops seem to do those as compared to kings and fox. I’d expect they also ride like concrete when working compared to the bilsteins.
It’s hard to beat the billies for a daily driver, we just put a set of rears on my son’s 4runner and that was an easy success.
over time I’ve learned I prefer a tighter, neutral shock over the digressive valving they use, but it’s hard to get it right and the more shock swaps I’ve done, the more I appreciate bilstein 4600s as a best recommendation.
edit: I am embarrassed by how many times I’ve swapped shocks looking for an “ideal.” It’s almost a disease.