Might change when the bridge goes in, but a bus ride full of mainland gamblers after a 12 hour duty? Better off applying to China Southern, China Eastern or Air China if that floats your boat BlankBox.
KA contracts are NOT commutable, guys do their best with the system that exists, not a single one of the commuters would say it is a workable lifestyle choice, they do it so they can give their families a chance at breathing air that won't kill them prematurely, in a home that they can fit in. Hong Kong doesn't offer either of these, you simply need to decide if the current contract adequately compensates you for living in one of the most expensive cities for expats on earth, and living in one of the filthiest environments on earth. Not my observation, have a look at how many days a year HK is listed as below "Hazardous to health" by the WHO. Unfortunately, those few days it was breathable, I was in the mainland, where it wasn't below WHO hazardous levels.
At the end of the day, expats are a 'necessary evil' that CX and KA will ditch the moment they think we are no longer required. It will happen in our career spans. Current recruiting trends have bitten them badly, but you can see what the directive from above was. Nationalize.