The Royal Park Hotel is located very close to the Tokyo City Air Terminal (TCAT) facility. You can take an express bus from Narita (60-90 min, depending on traffic) and walk a few minutes to the hotel. It's an easy transition after a long overseas flight. As is delightfully common in Japan, the staff provided a high level of service, with a smooth check-in process, luggage to room, room tour, etc. Everything was super clean and in order. There is a subway stop right next to the hotel so connecting to other parts of the city or to Japan Railways is very easy. I was assured by colleagues who work in the Chuo area that the Royal Park is the best value option for international travelers, and I saw no reason to doubt them during my stay. There are two Royal Park Hotels in that part of the city so be sure you can tell a cab driver who doesn't speak your language which one you want.
"Lovely hotel, very friendly staff and clean room"
Stayed here for 2 weeks and was most pleased with the stay. The room is quite a compact size, but has realistic pictures of the room on the website. Staff are very friendly and always greet you. Room always clean and tidy and hotel offers a lot of free extras including free wifi which is always handy and a very fast speed of wifi as well. Would highly recommend as it is very good value for money!