The flat is ok. There are a couple of improvements needed but nothing major. The microwave didn´t work. There are plenty of explanations provided upon getting closer to the check in day. It´s really handy to be close to the airport. Now be aware, like most concrete buildings with no carpets, any noise made by neighbours will be heard like if it was made in your ear. Neighbours are not noisy in general.
It´s literally 5 minutes walking from the airport and can be accessed through a pedestrian bridge that will take you to gates 4 and 5.
We had to park a car during our stay and Juan Carlos was very helpful with that. Communications were always very quick and fluid.