The appartment is located in the city center, which make it quite easy to reach all the touristic spots in Madrid. There are also several cafés, restaurants, bars, shops etc. near by. Nevertheless it was really quiete inside.
The appartment is really nicely decorated, clean and well fitted with everything you might need during your stay. It also has A/C in the living room and in the bedroom which is a blessing considering the hot temperatures in Madrid.
The communication with Roy and Marina was really great. They responded really quick, were super flexible and also provided some useful information about Madrid on top.
I definately would definitely recommend staying at their appartment. :)