We had a great stay at Hyesook's beautiful apartment. Hyesook was very nice and welcoming straight away and gave us a tour and explanation for everything in the apartment so there was no room for us to be confused about anything, which was great. There was no AC, but fortunately it was not so hot outside that it became stuffy and unbearingly hot inside. The apartment was in waking distance of the train station and the old city. It was really like being home away from home. Would really recommend staying there to anyone :)