usualsuspect,
i'm not a cx pilot, but have been in touch with couple of guys who work there. i know a guy, who knows a guy.... who commutes from lax to hkg. i guess his family is in lax and he prefers spending his days off there. from what i heard, it's not a big deal (if you're used to commuting), and it's working out well for him. i would imagine it would get tiring after more than a year, but thought i'd answer your question with the little bit of info i have.
good luck.
cs.