While the room was a bit small, that's understandable given it's Tokyo. For guests coming from Korea, it might get chilly in winter, but if you leave the heater on overnight at around 21-21.5 degrees Celsius, you can find a good balance between dryness and warmth. I asked about the towel policy during my stay and received a quick and helpful response. If you encounter any issues during your stay, using the Trip message feature seems to be a good way to get quick assistance. They also kept replenishing the towels, which was great and removed any worries. Although it's not directly connected to the Yamanote Line, there are direct lines to Shinjuku, Shibuya, and Tokyo, so transportation was never an issue throughout my trip.
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