Trip.com M.
Google
This hotel is directly opposite the Unseo metro station. From Terminal 1 (ICN) Airport it is a 10 min train ride to Unseo station, for KRW 1800 about $US 1.30. Foreign issued credit cards are acceptable from the ticketing machines. It takes about 5 mins walk from coming out of the station and going to level 3 for hotel reception. I was given a room overlooking the railway station square, great! Comfortable bed, and nice sofa. What was difficult was the wifi. Just simple password would be fine - finding the network and then the password code, a little bit harder than normal. The room was advertised with free cancelation, well before the due date of check inn. However, this was not available. Still, I am glad I stayed at this hotel.