So, I've put about 5,000km on this thing so far. It's just fine, but last week I had a failure - the control arm bushings were all cracked (6/8), so I just decided to replace the arms. OEM parts weren't cheap, but it's a once-and-done thing so I just had it done. Car is still a spectacular daily, honestly don't know what else I'd rely on year-round.
Funny enough, a week after I did my control arms, my dad pulls up saying his car's making a weird clunk from the suspension. Turns out his LS 460 needs control arms too. Mine has 136,000km now, and his has about 45,000km. Lovely...