Hotel is close to Namsan park (100m from the entrance), and close (100m) to subway station Hoehyeon (one stop from Seoul Station). Across the street is the entrance to the Namdeamun market, which is open almost 24 hours. Hotel is very clean, rooms are very compact but effective. Shower water is coming from the tap from the sink, which is very practical. Note a luxury hotel, but perfect location, very clean and everything you need is there. Staff is very helpful, speaking OK to good English. Shampoo and slippers in room. Did not try the breakfast since the closeby Namdeamun market has streetfood :-)
Perfectly suited for travelers that do not require much space and luxury but appreciate a clean hotel.
Subway takes you everywhere cheaply during daytime (traffic is terrible during the day). During nighttime, taxis take you everywhere, they are quite cheap (I travelled the equivalent of about 20mins subway for 10k WON at 3AM).