It might have been to many bad coincidences during our 4-days stay but the realistic evaluation is that the apartment was not worth the money paid:
the apartment seems to be not renovated for nearly 30 years! The bathrooms, kitchen and bedrooms have the design and equipment of the early 1980s, but in a very bad condition. All faucets and drainages didn't work well or even were broken. Also we had trouble with the hot water boiler and because of this no hot wter for 2 days. There were only left one remote control for our 3 bedroom ACs. Additonally, one AC didn't work in the first night. The cooking equipment and dishware weren't complete. Our Nespresso machine stopped working after the 1st day of using (fortunatly the landlord organized another one the next day): the furniture and some lights seemed to be bought at a fleemarket. And - there was no space to put dresses in wardrobes. The main entrance door directly from the elevator couldn't be locked properly - which the maintenance guy was not able to fix. We could add a lot more issues....
The neigbourhood and location is great, however the main terrace to use is no fun due to the extremely noisy Aircons everywhere around: might be better in spring.