Everything was perfect. More than expected. The flat is literally brand new, and very nicely styled. A lot of amenities and facilities (including a very useful and modern laundry room and gym room, we used both!). Netflix was crucial to entertain our kids...
Mary was super efficient and responsive. The preparation of our arrival and check-in was very easy. She also very kindly agreed to have a late check out when we left.
Finally the location which is very convenient. Very close to the Stadium and 5 mins taxi (meaning about €3 cost) to the main landmarks. But you can also walk and in 15-25 mins you can easily reach the key sites.
All in all we definitely recommend the Mary's flat. Hope to come back again!