A nice and large flat in a posh neighbourhood, which could be better equipped (cutlery, cups etc are definitely not enough for a house supposed to host 10 guests) and should definitely have a more updated internet connection.
We were 7 (4 adults, 3 kids) and the size was perfect. With 10 guests, bear in mind that the third bathroom is very small. Staff was kind (they let us put our luggage down well before check-in time), although they could do more - such as a Guestbook- to provide suggestions on supermarkets, trips, do’s and dont’s. Overall, a nice stay but they should put more effort into customer care and equipment.