The appartment is brand new and decoration looks great.
You will be amazed ! Equipment is of higher standard (e.g. cooker is induction, tons of options for the shower room ventilation (dry clothes, warm)) and exotic toilet options.
Heater works fantastic (we guess air conditionning as well).
Location is easy to find (go straight turn right go straight) and checkin is straightforward (I am talking out of several Japan AIRBNB experience). Location is quiet and beautiful in a vicinity with small houses and elderly people. There are more bikes than people out there ;)
Everything is available pretty close, a small post office (requires japanese speaking), traditional shopping gallery with Daiso 100 yen shop and local specialities, plenty of restaurant, a big supermarket and game center close the railstation.
You have the river not far as well for a walk or a run. Renting a bike is a must have (or use official docomo city bikes (at the time of writing, though the closest bike station is 40 minutes walk).
As a Location to reach airports, it is incredibly convenient with plenty of options (shortest to Narita is 1h without Narita express) even when arriving we hadn't to change train from Narita to the Shinkoiwa.
As a location to reach touristic attractions, you can take the JR train to reach central lines and tubes in no time. Akihabara or Asakusa would take around 30 minutes.
We will definitely come again !