Tightens up the entire vehicle. As others have said, it feels planted. Far less body roll.
Turns are solid. It is a much more stable ride without making it harsher. The soft ride is still there, it's just a lot more "solid".
If I could do it again? I'd get the longer end-links. They come in two sizes: 8-11" and 11-14". (I think.) The shorter ones are fine, but I'm not sure if I'll have enough play in them when I lift the truck. I measured the existing ones, and the 8-11" covered their length. If I lift it, I may need to go up to the next size. (Not sure...gotta get a tape measure and crawl back under the truck.)
If you're even halfway considering this, do it.
Start to finish, it took about an hour of work. That includes pressing in the bushings and sleeves and cleaning my tools. 6 bolts come out, 8 bolts go in.