1. take >10min for water to drain after brushing teeth or washing face.
2. very thin wall, can hear next door noises.
3. foreigner not welcome. all power outlet were only 2 round pins (korea type), no flat pin no 3 pin. I asked for adapter, at first said don't have. Then said got 1 only, but ask for KRW10000 for deposit of the adapter. I walk to 7-11 opposite and bought a new high speed charging adapter.
4. room too small to open my luggage.
5. tooth brush/paste not provided, go 7-11 and buy yourself one...