This is a very spacious, bright, open, comfortable space. I used it to finish quarantining in so was in it for 8 days straight and I was very happy to do so!
If the windows/balcony door are open then it is very loud from the passing trains nearby, but you can’t hear them when they’re closed. It’s close to haneda airport and taxi cost just under ¥4000 to get there.
One induction stovetop and one frying pan and saucepan, large fridge/freezer, enough crockery and cutlery for general use. Lovely strong shower, bidet toilet and washing machine. 2 aircons and doors around the tatami bedroom are able to be closed.
Futon was comfortable but the windows in the bedroom were very bright both at night (outside lights) and in the morning so bring an eye mask if you’re sensitive to light when sleeping!
Huge TV with Netflix and Amazon prime (need your own logins though).
Overall recommend for probably 4 people maximum for a comfortable stay.