We (a couple in their mid twenties) were in Tokyo for two weeks. The flat is just two stations away from Shinjuku, so really convenient to get everywhere you want to. Masami explained everything so well, getting from the airport to the flat was so easy. Also everything to use inside of the flat was explained very detailed. The whole time we were there we felt very comfortable and we hope to stay at Masami‘s in the future again! :)