The name is Klara. 20 years old. From Sweden but currently live in Berlin.
By Klara's arrival my flat had some minor, not vital, disadvantages, which were impossible to improve at once.
Having received Klara's complaint, I immediately contacted her and offered several options to solve the problem, which she ACCEPTED.
The payment was thus reduced TWICE.
But in several days, after Klara's having left the flat, I received from her a harshly negative and basically unfair reference.
This means, renting your flat to Klara, be ready for problems.
If she doesn't like something in your flat, she will demand a massive discount, and a negative reference will nevertheless immediately appear in the public domain.
Such a nice girl indeed, Klara.