Stay 4 nights at this hotel was pleasant except that staff did not clean the bed although have put the "Make up my bed" sign, went out for 3-4 hours for lunch and shopping, when came back to hotel, room is still not clean. The hotel shuttle to Siam and MBK was quite helpful but would be better if the shuttle service is every hour instead of every two hour. Concierge staff were so helpful help us to call travel agent that was late for an hour. Should book travel from hotel instead of book online although the hotel charge around THB500 more expensive. Taking taxi from hotel is safe but if you take taxi from the street back to hotel, taxi driver take you either to another mandarin hotel or to Rama Hotel, no use showing the hotel name card that suppose to be enough with hotel address in both english and thai. Altought Rama IV is the address name, taxi driver still take you to Rama Hotel, at the end after couple of taxi ride, we decided to tell taxi driver to take us to MRT Samyan station instead, from the station, we walk about 5 minutes.