we stayed for 4 nights in the house and everything was perfect. communication was very fast and we could check in easily as the key was stored at the house. Room and shower was clean. we had the second floor completely for us which was great. kitchen is a little poorly equipped so cooking would be hard but for a Japanise meal from supermarket it was not a problem.
location is only 5 minutes from the next JR station which makes it easy to reach all places in Tokyo. we will come again if we are in Tokyo next time.