Owner response fast and almost within an hour, Excellent !
We love the location within 3 minutes walk to subway station, it is not touristic place, only that some time we needed to change subway line more than once, only I subway line reach here
The only problem we experienced was the way to collecting the key, it was rather complicated, as we seen other people, at least two couples in front of us were taken rather long time to get the door key, believe all the rooms in this whole building was rented out through Airbnb by different owner, it is very common practices in Japan (we used Airbnb in Japan more than 10 times in different cities) you will not have chance to meet with the owner as most of them not even live in the same building, only way is to call them or through airBnB communication channel.
Inside the apartment everything are adequate but the sitting area is very limited for our 10 nights stay.
We love the area as it is the residential area, at night was quite.