it's extremely close to Hongik Uni station exit 5 or exit 7 either, takes one minute from exit.
room space is good enough for me.
room and facilities (toilet/shower room/ pantry) are really clean. especailly , shower room is made with 2 parts. inner is for showering and outer is fitting with dryer and big mirror. it allows 2 people in there doing their businesses, says, one is showering while one is drying hair or make-up.