We were 4 kids and 3 adults and the place was perfect for us, but I wouldn’t recommend to stay in more than 6 people, especially as there is only one toilet/WC and the place is slightly smaller than it appears on the pictures.
The spaces are separated by iron/glass walls and all the rooms and beds are quite comfortable; the location is very central but the apartment is quiet. Communication went very smoothly.
We loved the place and would come back again, thanks!