Have just about 30000 miles on mine.
They've been awesome. 4+ degrees of caster easily and nice and steady on the highway.
I like that their videos showed more angle vs uniballs. Easy to grease, easy to maintain.
There's an issue where they had rust forming on the top of the ball joint. They sent me out a new pair and I shipped back the old ones.
Some how I got rust on these too eventually. Their new cerakoted ones on images looked more of a matte finish vs the new ones they gave me. I've just been procrastinating in emailing them though.
Easy to swap out the ball joint. Don't even have to remove the whole UCA. Just the 4 lock nuts and bolts and swap them out. Super awesome.