Eva is well known as a company with good safety records, but unfortunately its not a choice, but the last resort... I was approved to fly 747 as F/O a long time ago, but after have met my friends there during the screening I changed my mind in time.
No changes so far, low salaries, license not recognized in many other countries, quite long time to be promoted... And besides that you will live inside the company.
I am sure you dont need to go too low!