<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by NM:
Can I use the AC facilities in T4 when arriving on a AA domestic flight and connecting to a QF flight? (I am QF Platinum travelling in J so I expect I should be able to get into the T4 AC lounge).</font>
Theoretically, you shouldn't have a problem but AC staff may tell you to go to the QF lounge instead since you don't have a domestic connection to an AA flight.
As far as lounges at LAX go then IMO, AC rules! OW international lounges are simply shocking and don't even have toilets inside!