Just make sure you keep clean grease in that upper ball joint and you'll love them. I found the boots on mine will let water and mud in on hard wheeling days, just pull the retaining rings, wipe it out and pump it full of new grease and they are good to go!
They also make alignment so much easier. My local tire places all suck so they won't mess with custom alignments too much, I just keep tweaking the upper ball joint and taking it back to them within the 30 day alignment warranty window until they are able to lazily get the camber/caster where I want with minimal LCA adjustments.