On the first morning when we were going downstairs, we counted over twenty flies all at the bottom of the stairwell, these numbers did lower throughout the stay but they were still present. Worse than this, we awoke one morning to hundreds of ants all over the kitchen which were trying to get a burger that had been saved for later a few hours previous. It was pretty horrid and confusing seeing as we were on the top floor. We could not locate where the ants were coming from but they appeared to be coming through the sink.
Additionally to this the appartement was quite clearly lived in regularly as the wardrobes were filled with a persons clothes and the bedding was not cleaned before our visit.