I just installed the Fox one and definitely notice a difference. Less jerking when hitting a bump, pothole, etc. I said on another thread, it was the best investment I have made so far. Less wandering at highway speeds.
Looks like its time for a new one. Going body color top and fenders, same everything else. Found a nice white one at Safford in Springfield, already lifted. Just scared to ship it across country after this last one made it all but 40 miles to me.