There was no mattress, just a bed base with a thin mattress cover over the top. Consequently, the bed was very hard. I stayed 2 nights and woke with a tired, sore back on both occasions. The air conditioner put out warm air regardless of the temperature setting on the control. As a result, it was very warm in the room. These two factors made for an unpleasant stay. The room was small but OK for two nights. It was clean, water pressure (including hot water) was excellent. There was a small bar fridge, refillable water, and decent WiFi. Close to Tanah Abang, eating places and malls.