Unfortunately, Xiong was not there during my stay but we had a good communication by mails. Reina, a nice friend of Xiong, was in the appartment when I checked in. I really appreciated that she speaks French.
The appartment is really quiet, clean and like the pictures!
The bus station is at 5 minutes from the appartment and the bus goes to the central station in 18 minutes. So you are in the center in less than 30 minutes when you leave the flat.
I enjoyed my stay in Amsterdam and in the Xiong's appartment.