Taiwan has two great airlines — China Airlines and EVA Air. They didn’t used to be nearly as good as they are now (in particular China Airlines), though they’ve really put an effort into their product, and now both offer among the best business class products out there.
I’ve also reviewed both airlines in the past several months on the same route on the same plane:
— In February 2017 I flew EVA Air 777 business class from Los Angeles to Taipei
— In June 2016 I flew China Airlines 777 business class from Los Angeles to Taipei