The location of the apartment is great and the building is really nice. However there were a few important things missing, which you expect from a Airbnb in this price category (hand towels were missing, hand soap was missing, there was not enough toilet paper, terrace was not cleaned, two from ten people had to sleep on a mattress on the floor, old furniture's, overall not very clean).
If these things would be changed then I would definitely recommend this place for a larger group of max. 10 people.