The apartment is tiny and in particular only has a very small & narrow bathroom which furthermore can't be locked. I would not recommend staying there with 6 adults.
A lot of the equipment is either broken (AC didn't work properly) or not available (eg sufficient cutlery for 6 people).
Communication with the host is difficult since the contact person constantly changes.
The location of the apartment is very good. Walking distance to bars, restaurants and the most important sights.