The apartment was very clean. It is exactly as in the pictures and it could be taken as the home of a Japanese family 😊. Beds are very comfortable. The toilet had free amenities and it was super clean.
Underground is around 12 minutes walking, but I think it is compensated by the quality of the establishment and kindness of the stuff. The area is nice and there are shops close to the establishment. Some interesting touristic points are also close, and they can be visited without need of taking any mean of transport.
Ismael, one of the people working there, was very helpful when asking about possible options to reach Narita airport. It is quite easy: 12 minutes walking (or less) to Kuramae Station, Enter A4. Then 3 stops till Oshigae Sta. Remain on board the same platform, which is quite convenient because of the luggage, to take Skytree. Ride 8 Stops to airport (around 50 minutes). The best is the cost, which is 1340 yens!
I would recommend this establishment to everyone!