We didn't meet the owner while there (her lovely neighbor showed us the apartment) but while corresponding she was very helpful.
The apartment was nice and spacious​, actually bigger then in the pictures.
Only minus points were that it smelled a bit stale in the apartment, maybe from the dog beds beneath the kitchen counter or just not airing. Also there were carbon monoxide detectors in the bathroom (that's also where the boiler is) and in the (first) bedroom. Due to this you were not allowed to close the bathroom door or it would go off. This meant we had to use the bath/shower with the door open, so no privacy.
Overall we had a good time at the apartment and city. The location is nice, we walked almost everywhere.