Most of the guys I know are happy. It depends more on you with Cathay.
Do not expect things to be the same as in US. If you expect differences and different people and adapt to new things well you will probably be happy. If you are going to get irritated that some things are done differently, that there are some cultural differences then you may find yourself unhappy. Going to work for an airline on the other side of the planet can be a lot of fun and interesting. It will also be different.