We were a group of 9 in our mid-20s staying for a weekend. The flat is absolutely beautiful and looks as shown in the pictures. It is in great condition very spacious and really charming. Anouk was very accommodating giving us a late check out on the Sunday given there were no guests arriving that day. 2 points that could use improvement are 1) the shower in the big bathroom had poor drainage, this becomes especially problematic when a few people need to shower after each other. 2) on some of the beds the pillows weren't comfortable they seemed to be big couch cushions rather than normal pillows.
That said, we were all very impressed with how beautiful the flat was and it was very hard to leave! Highly recommended!