Ying is a really kind person. I felt comfortable at her place and everything was very clean.
The location is perfect, the surroundings are safe for a woman traveling by herself.
The room is tiny but with a really comfortable mattress.
The only inconvenient that happened is that during certain hours (unpredictable) there was no hot water in the apartment. This had nothing to do with Ying, it was related to a general problem of an old building. So my advise is to check before taking a shower to avoid freezing with cold water.