the location is very near to eateries. No worries if you arrives late as the home is access via key lock. You can get food as there are few 24 hour shops. Just 3 mins away has very good ramen just outside okubo train station. The home location is near to JR Yamadote line and about 15 mins walk (1.5KM) from Metro line - Shinjuku. It is walk-able but after a long day, i would prefer to look for a place which is around metro line, As tourist, you can get 3 days metro line pass in the airport with only 1500yen. But paying additional 140Yen on JR Yamadote line from Shinjuku is still convenient to get home.
There is a supermarket just below the house. It is very easy to get anything u need. U will be able to get groceries till 12am.
The home is clean and spacious. It is pretty comfortable for 4 to 5 people. 3 single bed and 1 sofa bed (twin). There are many pillows and the house is very clean. It has a walk in closet too for all the suitcase.
Love the place for a 4 night stay. There is also a portable wifi which you can carry with you for the day.
The cleaner comes on the dot at 10am on check out day.