To be honest, I think there wouldn’t be a lot of people flying with the airline, as most people I met said that they would just stick with China Airlines and EVA Air as they have been acquiring miles and getting statuses from those airlines.
My guess is that StarLux will stay unaffiliated for a while to ensure that operations are running smoothly. It seems like an interesting concept, but there have been many cases of small start-up airlines being forgotten because passengers don’t give them enough attention. I would say this will be especially hard for StarLux considering that CI and BR dominate Taiwanese air travel.
Overall, I’m intrigued by this new airline, and will probably check them out next time I visit Taipei. Their A350 livery does look very nice. :)
As an American with United Status I would only fly them if their prices were lower than Uniteds to Taiwan. This probably won’t happen so I wouldn’t fly them but if I decided to spend some extra money to get a nicer flight quite possibly could fly them.