I was waste deep in the Cathay hiring process a couple of years ago. With the current pay rates you will be living in a slum in Kowloon, and get to watch the FOs head to the Mid-Levels to their nice apartment. Pay is almost unlivable in HK.
5-7 years as a SO
No US bases, and even when you move to FO it could be years before you see a US base (if they're still around).

What once looked like a very good career airline is no more, do your homework and look at prices.
HK is not a place that you want to live in a bad area, but on the pay you can't afford anything else.