Firstly, during my stay, there was a problem with hot water because when someone in the building was using hot water, I couldn't use mine. Secondly, sometimes people who do not live in the shared flat come over to cook or to use the sofa... They are not bad people, but it's always surprising to see strangers in our flat.
Overall, my stay was okay, but I think these points are relevant, and people should know about them before coming. I'm sure these issues can be resolved and the situation can improve in the future, but for now, this is how it is. Thank you for your understanding.