We haven't met Esther (or at least she didn't presented herself to us). We were greeted by a friendly friend of hers, who showed us the apartment. The room is quite spacious and bright. The bed is quite big and comfortable and the light was dimmable, which was great. It was not so warm although the heating works fine after a moment. The balcony door was stuck because of the ice, it has some sort of air passage that creates a leaking that frozens.
The bathroom and kitchen didn't seem so clean. The floor in the kitchen was a bit sticky and smelt really greasy. The walls are peeling off the tints. Both were always really cold.
You gotta work your legs out, cause it's on the top floor. If I'm not wrong there are 8 pairs of staircases. No problem with that, but it can be tiring depending of how long you will stay.
In the end it wasn't a perfect experience, but it worked fine.