The RC is located on 6, I think, not a top floor as usual. Nice hotel, but nothing great. Take advantage of the shuttle bus to/from Shinjuku station it will save you the walk or taxi and heaven only knows it usually is hot in Tokyo in August. I am not sure where the Century shuttle picks up at Shinjuku, but get the schedule from the hotel and take the shuttle to Shinjuku and then they can show you were the pick up is. The walk is 6-7 blocks. If you have not been to Japan and/or Shinjuku the station is massive and busy, but it is a real "experience". I have only stayed at the Century 3 or 4 times, and those were some years ago. Now I only stay at the PH (always on points).