The apartment was very clean which immediately made us comfortable. The Hatagaya train station (along the New Keio Line) and many restaurants are within a few blocks walking distance so the location was great.
We had mentioned that we would like to check-in as early as possible and we received a message as soon as the room was clean to allow us to check-in. We had a little trouble with the lock and sent a message to Masami who responded within a minute and was at our door within 2 minutes to help.
My only note is that the mattresses on the two smaller beds were a little lumpy so I wish they were just a little more comfortable but would recommend and hope to stay there on future visits.