As close to a perfect stay I've had through Airbnb.
+ Great access. A five minutes walk to reach Yamanote line.
+ Fast and helpful communication.
+ Great amenities. Basically anything a regular house would be expected to have.
+ Pleasant and quiet neigbourhood with convinience store a minute's walk away.
+ Privacy. There was no unsolicited contact from the hosts.
+ Great value.
I would pick Masaki & Haruko's place over most any hotel, and the price makes this choice a no-brainer.