We are a family of 6, 2 adults and 4 children aged 13 to 6. The space was more than enough for us (the grown ups slept on the sofa couch which was of excellent quality). What makes this apartment great (aside from being clean and modern) is its location. You are very close to the various train / subway lines, however its location on Cat Street makes you feel like you are living like local. We loved the apartment and would definitely recommended this to anyone. The contact with the team was also excellent. Loved Tokyo and can't wait to get back.