What had been a lovely stay at Sonia's place ended rather unfortunately. Sonia's apartment is listed as 120 square meters and sleeps seven individuals with three separate bedrooms. My partner and I rented the property for a nine-day stay. We were very satisfied with the apartment and found Sonia a personable and accommodating host. Unfortunately, following our check-out from the apartment, things took an odd turn. Within hours of leaving, I received a long and angry message from Sonia in which she accused us of having hosted many additional guests in the apartment. She requested a payment of over 700 euros for these additional guests. This was quite a shock, as my partner and I were traveling ALONE in Rome and had certainly not invited anyone else up to the apartment. Moreover, our communication had been very smooth and friendly up until that point. Sonia's reasoning behind her accusation was that multiple beds in the apartment had been slept in, which for her was sure evidence that we had hosted many other people. I responded to her messages, explaining that, no, we had certainly not hosted anyone else, and that rather we had simply made use of all of the beds at different times. Sonia responded with a photograph taken of the apartment from another building across the street, which showed that lights were on in two(!) separate bedrooms on one particular evening. Needless to say, this made the situation even more uncomfortable, as we now knew that she had been observing us in the apartment from across the street, had suspected we were breaking the rules by hosting additional guests, and had nevertheless chosen not to raise the issue openly with us. In hindsight, this also explained why she had stopped by unannounced a couple hours before our departure, claiming to have mistaken the check-out day. In the last messages we exchanged, Sonia implied that she should receive extra compensation for the additional cleaning costs incurred through our use of multiple rooms and said that I had violated the terms of our agreement by using more than one bedroom. While I was glad she no longer seemed to believe I was outright lying to her, the accusation that I had violated the rental agreement by using the full property remained absurd. It seems that in part this disagreement was due to a genuine misunderstanding. Sonia had left all three bedrooms unlocked for us, with the generous intention of letting us choose which bedroom we preferred. It was, however, apparently not her intention that we make full use of the 120 square meters of space, which, nevertheless, is how the apartment was advertised in the listing. It is within Sonia's right to let out all or part of her apartment, but she did not mention that she expected we would limit our use of the space during the check-in. Furthermore, had she brought this up, I would certainly not have agreed to such an arrangement, as this is simply not how the apartment was advertised. All in all, if this had simply been a misunderstanding and Sonia had requested a small amount of compensation for additional cleaning expenses, I would have been willing to write it off as such. However, the fact that she accused me of deliberately lying to her (multiple times) and requested an enormous amount of additional compensation, that she secretly photographed us in the apartment from across the street during our stay, and did not bring up her concerns with us in a direct and open manner, all left a very bitter taste and has made this particular stay a rather unusual and ultimately unpleasant experience.