Me and five of my friends really enjoyed our stay in Klara's apartment for a week in August. It's clean, cozy and looks eactly as it does in photos. It had all the things we needed for cooking, washing, etc. (even a yoga mat) and some great knick-knacks that give it style. The bathroom might be tiny if you're a big person, but other than that, there was enough room for everyone.
We didn't get to meet Klara since she was on a trip herself, but she was prompt in answering my messages, and her son welcomed us in the apartment, so we didn't have any trouble. He also gave us two sets of keys which was really handy for a big company.
The house itself is in a really nice location - it has a great public transport access, and the walk to the center takes about 10-15 minutes along a pretty scenic route. The district is quiet, with shops, banks, cafes and bakeries nearby. There is also a big park right next to the house, where you can go for a run or do some exercises.