Nadina sent me an email with clear instructions. The overall communication was smooth. However, there are a few things should be considered if you want to rent this Airbnb.
1) the location is not good. Though it's convenient to go out, the area is not very decent
2) the building is really old...
3) the door is unable to be locked
4) the toilet seat is not fixed
5) water can be easily split out during shower