I enjoyed my CX interview experience approximately 2 years ago. Then I did some research regarding the air pollution and I politely said "thanks, but no thanks".
I have nothing against CX itself, but the air pollution in Hong Kong is simply unaccetpable. I believe economists like to consider something called "final cost". Even if CX is a great carrier with high paying salaries, what will 10-20 years of that air pollution do to your health and that of your loved ones?
I will say this though, the air in VHHH is better than that of VIDP. 0500m visibility in FU isn't my idea of a good time. Took a month to get over the cough and other asthmatic problems when I was in India.