This was a very beautiful, clean and cozy apartment (as it is shown in the pictures and with an even better feel) in an amazing location. It is very, very central and you can walk everywhere. We made the mistake to buy metro passes that at the end we did not use because the apartment is close to everything. There is also a very nice supermarket just opposite which is extremely convenient for having breakfasts and snacks at home. The street is lively with nice bars and restaurants.
Marlen is a very nice and accommodating host who made us feel really welcomed and offer to help with anything.

The only downside, which has nothing to do with Marlen of course, is that there is a lot of noise from the bars and restaurants on the street for almost through the whole night. Thus, it is very difficult for the person who sleeps on the sofa bed next to the window to have a good nights sleep. The bedroom though at the back of the house is nicely shield away from the noise.
A very small omission was that there were no middle size towels, only hand and bath ones. We are certain that if we had asked Marlen she would have provided some but at the end it was not a big thing. We are just mentioning for another time.
THIS IS DEFINITELY A HOUSE WE WOULD STAY AGAIN AND AGAIN.