This hotel has a good location on Tokyo Bay away from the hustle and bustle of downtown, but you will have to take a train to Shimbashi station and then transfer to get to downtown, shrines, etc. The private railway to Shimbashi costs ¥620 roundtrip and is right next to the hotel. There are subways at Shimbashi and also trains to Tokyo station and beyond. However, there are three malls and other shopping within a 3-6 minute walk from the hotel, so you will not be short on options for food or other shopping while at the hotel.
The hotel has a beautiful lobby with very elegant features. Our room was well finished. It was not overly large, but not small either. We were upgraded to an ocean view room, which overlooked Tokyo Bay and the bay bridge. It was an industrial and commercial view, primarily, but very nice, with a small balcony you could step out on and look over the waterfront (jogging and bike trails) and the bay.
Breakfast was included in our rate, and was outstanding. We used the Ocean View dining room, which offered a western-style buffet (with many Japanese options). (There was another breakfast option in a Japanese restaurant that we did not try.) The breakfast rivaled some of the best in both Europe and Asia, although not, perhaps, the Langham Place in Hong Kong, the Hotel Bristol in Berlin, or the Renaissance Munich (which may be the world's best). We ate at the Taronga Restaurant at the hotel one night and it was excellent. There was an amazing pastry shop right next to the elevators that had desserts that tasted as great as they looked. All in all, we had truly great food at the hotel.
The bathroom in the room was well-appointed. My wife loved the bidet. Amenities in the room, including the charging station inside the safe, were quite good. Temperature controls worked quickly and well in the room. The room was very quiet.
We used the laundry service at the hotel, and while it was pricey, it was outstanding. We're trying to figure out how we can get such good results at home.
The staff is very polite and sincere, and they try really hard to please. The major problem is that none of them really speak any English (despite the fact that at least 20% of the hotel guests appeared to be European, North American, or Australian). The concierges, front desk girls, and girls who escort you to your room all speak maybe 100 words of English. They can handle a few standard questions, but almost anything complicated is completely beyond them. I had to figure out about 3/4 of direction questions and other questions myself. I don't speak a word of Japanese, which of course doesn't help, but then I'm not in the hospitality industry. So while this is a five-star hotel, I really can't recommend it to people who don't speak at least some Japanese. You will struggle, as we did. Since this is the only place we stayed in Tokyo, I don't know whether the other luxury hotels have the same issue, but the staff at the hotel we used in Kyoto spoke only moderately better English, so perhaps it's just a fact of life at Japanese hotels.
Happily, nearly all the signs in Tokyo are in Roman letters as well as Japanese, so the adept traveler can figure most things out. I did have to ask a few locals some questions, with mixed success. All the major trains, all the Tokyo subways, and most minor trains have announcements in English, and the LED panels on the trains and subways also list stops in English. So you should not have any trouble on the trains.
Tip: There is a grocery store on the first level of Diver City Mall, a quick 6-minute walk from the hotel, that has lots of carry-out food that you can bring back to your room. We used it a lot. Also, just through the train station (3 minutes from the hotel) is a 24-hour convenience store with plenty of food and drink options. The concierges can direct you to these stores and it will be easier on your wallet than eating at the hotel restaurants. The food courts in the malls did not look appealing to us; they seemed to be Japanese versions of American mall food courts.
Tip: To take a train to Narita, Kyoto, or any other place out of town, it's better to pick up the train at Shinagawa Station if you can rather than Tokyo Station. Shinagawa is a good-sized station, but much smaller and considerably less hectic than Tokyo Station. Also, if you are taking a taxi from the train station to the Hotel Nikko, it will cost you about 1/3 as much from Shinagawa as from Tokyo Station. Intrepid visitors might take the subway and private railroad from Tokyo Station with luggage, but we would not.
Tip: In our opinion, the day trip to Nikko from Tokyo was the highlight of our trip to Japan. The main temple at Nikko is the most beautiful sight we've ever seen in a considerable amount of world traveling.
All in all, a very pleasant stay at a beautiful hotel, with the significant caveat noted above about the struggles with English.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC