The reason we’ve given a low rating for this experience (2 or 3 stars) is not for the flat, which was very nice, but for the response of the private agency when something went wrong.
For the entirety of our stay, there was renovation of a flat below us which involved very loud drilling and hammering during the day. Some days we couldn’t hear ourselves talk in the apartment and had to leave. The agency told us that it would be over in a day or two, but in fact it carried on for the duration of our stay - 10 days. Furthermore, the agency didn’t return our calls during the day. Given the situation, they should have made an effort to accommodate us, such as offering us another apartment to stay in. We asked for a reasonable discount of 3 days for this stay, which they were not willing to give to us. Thus, we have the impression that the agency doesn’t care about its clients when things go wrong and simply expected us to deal with it.
The service level in the apartment itself was good: we did get a very nice welcome that made us feel at home and we appreciated the cleaning in the middle of our stay.