The hosts were prompt and polite! This was my first AirBnB ever so I was impressed with the timeliness of their responses. The apartment itself was clean and prepared, quite small but just big enough for two travelers packing light.
The showerhead and sink were all combined into one location, which made getting ready harder for two people. Additionally the English instructions for the washing machine didn't go over all the buttons so we were unable to figure out how to dry our clothes.
The location is really unbeatable. Access to the yamanote line and all sorts of local attractions are within minutes of walking! The price, however was a bit steep, and in practice we found that the Japan rail and metro are so efficient it really didn't matter where we stayed in Tokyo as long as we could access a metro station. All in all would recommend staying here if you plan on mostly exploring shinjuku on foot!