I suppose the Cathay Pacific Cadet Programme must have something to do with it. A very rare type of scheme nowadays. Although I am not sure if they are currently running any new courses, last time I checked you could still apply.
I think it would be a great start to any airline career, that is if you can put up with relocating to HK and living a very different lifestyle (presuming the candidate is from Europe/USA). Spend 2-3 years (or so) as a SO cruise pilot (which if you haven't had a previous airline job means you don't know what you are missing out on and will be grateful for the job), move on to FO spend apparently 20 years waiting to become Captain (doesn't sound too good). But hey you don't have to stay for 20 years, you can just leave and join somebody else if that is what you wish (in an idealistic world).
Personally as with the previous commenter I would say if you had many hours flying jets it may not be ideal though because of the slow career progression.
P.S. I just realised that you are from China so it wouldn't be that inconvenient for you to relocate.