Staying at David's place was a real pleasure. Our room was very comfortable and the heater and thick blankets got us through the cold Tokyo winter. David is a very friendly guy, who responded quickly on my messages. The instructions to get to the house a very clear and David made sure that we arrived fine, since he was not home himself.
Also I can recommend to have breakfast at home, David cooks a wonderful meal so you start your sightseeing day full of energy!
The pocket wifi that is provided (although you pay separately for it) is a very handy tool, that'll help you find your way in the city.
Meguro, the area around the house, is a very friendly and quiet neighborhood. There should be a nice onsen nearby, unfortunately we didn't have the time to try it.
All in all a lovely stay with David and his family!