I'm sorry that I couldn't give you a full 5 stars because I can see the efforts to make a comfortable appartment.
I'll first start with the good things : the Japanese room is very cute and the beds and pillows are nice. The kitchen is full equiped, and the appartment is just in front of a subway station, so it was very convenient.
But, as it is the first time I'm really disappointed about an Airbnb, I have to share the bad points also. It's more because of the building itself than the appartment, but it was disappointing.
There is a strong musty smell in the bathroom that bothered us a lot during our stay. The non-existent wall insulation makes the bedroom very noisy, because it's just near a busy intersection. And because there is no heater in the living room, it was cold so we didn't feel like staying a lot in this room.
In conclusion, unfortunately we will not come back again, and we hope you can do something to improve these points in the future.