The Spa at Aman Tokyo
Aman Tokyo's spa is mentioned by professional reviewers writing for major publications. Out of 13 publications tracked on TripExpert, 4 mentioned the spa, like Departures, Michelin Guide and Lonely Planet.
Aman Tokyo 
Departures
Michelin Guide
Lonely Planet
Mr & Mrs Smith
Departures "Book a room overlooking the Imperial Palace, even if that means opting for a standard room (which are unusually spacious at 764 square feet)"
Michelin Guide "Guest rooms are spacious, with even the standard ones measuring 71㎡"
Lonely Planet "Enormous rooms all have baths with stunning city views – something you also get from the giant stone bath filled with onsen water in the spa"
Mr & Mrs Smith "One thing we weren’t going to miss out on, though, was a visit to the spa"
