the host is very considerate but i need to give my honest opinion for better judgement of fellow travellers. my general advice is that airbnb in Tokyo is not a economical option as compared to other places in the world，as airbnb is boycotted by the hotel industry so the government has imposed strict regulation and many hosts have withdrawn， therefore the option is limited and price is high too. Do check other hotels，instead of only looking at airbnb like me
pros：1. the room is clean
2. very clear instruction for check in
3. the host also gives us useful tips to get around
cons：1. the location is not convenient. in deed it is only 20min ride from shinjuku，but only on the condition that u catch the metro in time！ at late night （after 10 pm）the metro is like every 40mins！
2. the environment is really noisy. lots of car noise even at midnight. i feel i am sleeping on the road. i think the host should consider sound proof windows
3. the power cut off twice as we used the heater
4. no elevator. think twice if u have large luggage