Great location, very good service, however the smell of food in the lobby is a nuisance and food options should be extended (sushi bar...)

I would jump at the chance to stay here again. The only hotels in which I have stayed in Tokyo have been the Park Hyatt in Shinjuku, the Royal Park Hotel, the Four Seasons at Marunouchi, and the ANA Intercontinental. Our experience at the Peninsula outshone all the rest. Our standard room was very large and supremely appointed. It was modern, warm, comfortable, and luxurious. I don't even think the photo on the website does it justice. I was expecting a room almost half this size. It had a foyer with a door between it and the room, a love seat, breakfast table, a chair, a king size bed, and two night stands. The bathroom was huge with two sinks.

The service was better than any of the other places we've stayed. The staff at the Park Hyatt tried to make us feel like we didn't belong, but our experience here was completely different. The pool and jacuzzi were wonderful as well. Okay, so having breakfast in the lobby wasn't ideal, but I would hardly fuss about that considering how much I enjoyed my stay at this hotel.

One not-so-great aspect - we didn't enjoy the food at Peter's. It was insanely expensive (but that's to be expected at many a Tokyo hotel) and there were a lot of ultra-modern dishes, complete with the restaurant trend of whipping certain foods into a foam. They called it "mousse," but it was foam. Some people like it I suppose, but it's a little too experimental for me. However, the wine selection, though massively over-priced, was excellent.

The Peninsula Tokyo is perfectly located at five minutes walk from the elegant district of Ginza where you'll find the best boutiques of the Japanese capital and a lot restaurants all around.
The rooms are very spacious and offer stunning views of Tokyo if you select a Deluxe category with view. In this case, you'll have a beautiful space extremly well designed of 60 sq meters with two large windows offering a breathtaking view. Beds are more than comfortable and the Peninsula touch offers the best in room technology with a valet box, a personal humidity controller and a lot of buttons for lights, windows, music, TV, nails dryer... You'll need about one day to understand the function of all buttons but all these details offer the best in term of comfort. The bathroom is one of the most exquisite i've seen with a spa touch which reduces the light and turn on a relaxing music but also, the high tech automatic toilets only japanese have the secret... Incredible!!!
Don't expect any mistake of the staff because all of them are truly excellent and perfectly trained. Moreover, don't forget they're japanese and it means there is a real devotion to the customers in their mentality. All of them are extremly smily and efficient.
Consequently, The Peninsula could be the best hotel of Tokyo if there wasn't any problem with cleanliness... A dirty directory book full of coffee and some pillows on the sofa not really clean... Moreover, when we came back on the evening, our key didn't work anymore and we have been obliged to wait more than ten minutes before somebody comes to open it, not acceptable in one of the new palace of Tokyo...
And personally, we don't like the lobby used as a restaurant for breakfast, lunch, high tea, dinner... and not really nice when you arrive with your baggage in the middle of the customers who are eating...
A last bad detail... the online reservation system which doen't give the right information about the rate if you're three...
But this is a very good hotel in Tokyo even if i'll choose an other one next time.

Stayed in a standard room which is actually of a good size and with a pleasant layout. Nice sofa infront of the TV which means that you don;t see the bed when kicking back. Seperate dressing area and wardrobe. Excellent bahroom. Lots of technology in the room.

Negatives: Only one negative and that is that there's literally no views, unless you are interested in looking into a typical Japanese office building. I think the bigger rooms and suites have a view overlooking the imperial park, but most rooms will not have much of a view. The hotel building itself is not a highrise such as the ritz, park hyatt and mandarin.

Positives: the location is smack in the middle of fancy Ginza with some great shops (very top shelf though..). And it is just by the park so i would think it is geat for those who would like to go jogging.
The bar at the top of the hotel (seperate lift) is small but good and more fun than say the bar in the ritz-carlton, but still not as fun at the american bar at the Park Hyatt.

And as mentioned rooms are of a good size and very well laid out. As always in 5* tokyo hotels the service is phenomenal.

If you are visiting Tokyo for the first time then I would recommend Ritz-Carlton purely because of the stunning views - but if that's not important then this is a strong choice.