Review of Gimpo Airport International Flight

I took T'way flight TW667 from Gimpo Airport to Songshan Airport in Taiwan. Although I have used the domestic terminal at Gimpo Airport many times, this was my first time using the international terminal. It was easy to find as it is located right next to the domestic terminal counters. The check-in counter was very small, but there were more passengers than I expected, so it took quite a while to check in. I used the Sky Hub Lounge, which was decent as expected from a domestic lounge.