It was a pleasure to stay with Chao. Communication was fast and easy, he even made every effort to enable a bit of an earlier check in spontaneously, as well as helped us out with local tips on where to store our luggage in the city.
The appartement is as described, directly next to the tram stop that takes you into central Paris, and looking as pictured in the photos.
Our room was prepared lovely for us, very comfortable bed as well - thank you Chao for having us.
Just on a side note (maybe good to know for travellers with children) as Chao states in the description you are asked to be rather quiet/can hear the neighbours as the walls are rather thin. That was not a problem for us though, I guess you just get that in a city like Paris :-)