I use this particular flight on a regular basis. ICN-TPE-ICN BR159, BR160. this flight is very unique flight any flight departing from ICN. most of flights depart of ICN are pretty much filled with majority of Korean passengers, whereas BR159,160 has more Taiwanese passengers about 70% or more, Korean passengers in those flights you can count them on finger tip level. so little amount of koreans use this flight normally foreign airliners flying into ICN, cannot make profit without Korean passengers, but this flight does make profit without korean passengers. I never seen korean passengers in those flights more than 20 all the times that I used BR159,160