We spent a week in Ryota's place with my partner and 7-year old son. The location is super good - there's a metro stop just around a corner and
also Shinjuku central station, shopping and dining possibilities are within a walking distance as well - ca 15 min.
The apartment is situated on a quiet street and is comfortable and spacious. It has a separate bedroom.
There are grocery stores in every corner and the shops are open till late. Coffee shops are also nearby.
Across the street is a nice park if You like to have your morning running practice over there.
Check-in and arrival instructions were very thorough and made our late night arrival very easy.
Maybe only thing that we missed was a TV or a speaker to listen to some music.
Overall I recommend Ryota's place to everybody visiting Tokyo!