Nice and spacious, all amenities thought of and provided. Comfortable for 4 pax to live in. If you have more people, there is a chance there will be more noise, which the neighbours are very sensitve to. You will receive several reminders from the host to keep your noise level down, as there have been complaints from the nearby residents in the past.
Location is in a quiet neighbourhood, walking distance to train station, which is next to a supermarket and several eateries. Straight train ride to Ueno, but not exactly convenient to other places of interest.
Host was flexible with check-in timings, with everything prepared for a comfortable stay.