Nana's place is superb, clean and cozy. It's not too far from station but not too close.. Anyway, the view you will get while walking is worth more than you expect. Infront of the apartment is the park and opposite to Skytree.
Our group is 6 ppl. and have 2 elders and 2 kids, but is's no any problem for walking distance.
The communication with Nana is all smooth, clear instruction and quick response, pocket wifi is great even using outside.
The shopping area is so near. I walked from apartment to the station just 5 min. and shopping area at asakusa , Rox, Sensoji temple is easy. We walk through Matsuya and across to Asakusa exit 1 (With Elevator) which is quite convenient for eleders and kids.
And of course , if visiting Tokyo again, will stay at Nana place.