For a four-star hotel, i had at least expected their curtains to be blackout curtains to completely block the light out. Turns out that it was a regular curtain. I turned the AC on, set rhe thermostat at 65 F at 9 pm, hoping the room would get cool and crisp faster. At 2:30 AM, the room temperature was 82 F, 7 Am 76 F. Their comforter may be comfortable and cozy during the winter season, but completely out of line for that temperature. At 8;30, it went down to 74 F. I wish i had slept on their bathroom which had a cool stone floor. I usually set my home temperature at 70 F because Korean summer is quite got and stuffy. Even my dogs couldn't have slept at that temperature. Completely unacceptable. I have stayed at Samjung hotel for several occasions in the past but never in summer. I would never choose Samjung during the summer season.