We visited as two families, four adults and four kids, the house accommodated us perfectly with four bedrooms and a good kitchen / dining / living room we could all eat in. The location is great for getting to know Tokyo with good transport connections nearby. The neighbourhood was nice and calm with great little restaurants and shops nearby and Ikebukuro a short walk away where the choice is huge.
Checking in and out was easy with quick communication from our host with any queries we had.