Yingtong is a very nice host! She's very responsive in the communication and gave me a lot of tips and suggestions. The house is small (perhaps a bit cluttered), and the bathroom a bit "old", but the bedroom is comfortable and actually bigger than how it looks in the pictures. It's 3 minutes walking away from the metro, which is very convenient, and the neighbourhood is lively and full of restaurants. Overall it's a good solution if you want to explore the city for a couple of days and need a place to crash at night.
The only thing I want to mention, for light-sleepers, is that the walls inside are very thin and also you can hear noise from the streets, and the fact that you cannot control how much light enters in the room as there are no blinders on the small windows (which face Yingtong room, not the outside): if someone needs to turn on the light during the night, the other room will be enlightened as well. So it can be a good idea to bring a mask/ear plugs.