Stasi was a good host, responding quickly to our messages. In our bedroom, there was a window broken by a previous guest. Unfortunately, she didn't mention this to us in advance. Though, when we contacted her regarding it and respective security concerns, she came by the next morning to check the heating of the room to make sure we had it warm enough, and gave us tips how to keep it locked.
Another thing is that it wasn't possible to lock the bathroom nor bedroom door. It didn't matter too much since we knew if the door was closed someone was inside. But if you don't trust the other guest, then this will become a problem for you.