Masaharu's WOW flat in Yurakucho is unquestionably the best Airbnb experience I've had in Japan. The quick responses from Mas were helpful and made the check in and check out process effortless. His map with step by step instructions for finding the place were greatly helpful. The small space is perfectly situated a few seconds walk from a very lively 'izakaya' eating and drinking area located beneath the train tracks. The birds eye view from the apartment is of the trains - both local commuter trains and the Shinkansen. Mesmerizing. The traditional Japanese soaking tub made with 'hinoki' wood was incredible - that it had a view of the trains passing? Unbelievable. Considering the view and the hopping neighborhood? The bedroom is absolutely quiet and dark. A perfect cocoon for jet lag recovery. All the amenities & especially the Chemex coffee set up were greatly appreciated. Blue tooth access directly to the stereo? I can not overemphasize this - THE BEST AIRBNB IN JAPAN. By far. It is a mini ryokan [traditional Japanese inn] within the heart of the city and I will absolutely plan to stay here again. It's called WOW for a reason...