We met Alex who was extremely nice. He explained thoroughly everything there is to know and more and was very flexible about our arrival, departure and everything else. the flat is beautiful and fully equipped.
the only thing to mention is that one of the double beds described is a pull-out sofa which is located in the shared area next to the kitchen, so it is not private neither a "true" bed. also, take note the 2 separate beds are in the same room which is tiny, so the people sleeping there are pretty much sleeping together. If that suits you - and it did work for us eventually - then the flat is perfect. highly recommended!