The location of the flat is amazing, right in the center of the Old Town, everyhting is reachable by foot. But be aware that it might get noisy at night (especially on weekends). Kim is a great host, always available. In general flat is fine, you have all you need.
Just a little tip to allergics (as me). Washing powder used for towels and linens has very strong smell so that those items have this smell too. For me it was difficult to cope with it. After first night I asked Kim if he has other options and he changed our sheets, it got bit better after that. Towels were still with very strong smell, so that I couldnt use the mfor my face (bought paper towels for that). So if you have similar issue, its better to let the host know about it in advance.