Ann's place was about a 10min walk from Omotesando station which is quite a central stop in Tokyo. There is a Mini mart near her place which makes it convenient to buy stuff. Ann was nice and always checking in on us, offering us some snacks and tea.
The room has no lock which was ok for us but might be a problem for those who feel like they need more privacy. The shampoo for guests felt rather damaging to the hair but thankfully we'd brought our own. Room was nice and clean with excellent heating. Hot shower was a bliss to use in winter.
All in all I would consider it a good stay with a nice family.