It is a good option in Tokyo, in great Shibuya neighborhood ; we are a family of four and spent 5 days.
Good points:
1. Location ! Easy acess to JR lines.
2. Kindness of the host ( they live in the same building and they are really very kind)
3. Amenities ( food and you can find everything at the place! )
Some points that might be negative:
1. Cleaness ( besides it is and old building)
2. Noise at nigth
3. Bedding and mattress (be aware it is not a hotel standart )
From the begging we were told is a 5th floor , without elevator ( if you have locomotion problems, not recommended)
But it general , very good !