The room was great. The bed was comfortable and close enough to two subway stations (equal distance between Hongdae and Hapjeong).
However, my main issue was the bathroom. It was very, very moldy. There were clumps of black mold in all the grout, along the sink, the ground, the walls, everywhere. There was no ventilation in the bathroom, which I think caused the problem. Unfortunately, I would not choose to stay here again.