Our flight leaving Seoul was 2.5 hours delayed and the host allowing us a late check-out was really very helpful. She was very accommodating. The flat is in a very good location with busses and subway stations nearby. There are taxis readily available by nearby Hotel Gracery. Lots of coffee shops, restaurants and shopping available in walking distance. Several currency exchange places and machines. Even though the flat/building is on a busy restaurant street we never got disturbed by loud noises. I would have given 5 stars but for two things that are easily improved. I wish there had been a clothing iron or an English label on the drier for anti wrinkle setting.It was not easy to find the entrance to the building even though the taxi driver stopped right in front of the building. So a better explanation or a pic of the entrance door with the codes would be helpful. The issue was common as we saw other travellers not understanding where the entrance door was.