I Loved Maria's place. She welcomed me with a delicious coffee and an half hour conversation with tips of the best places to go around her apartment building (she even printed a map with it - which was super nice and useful). The building is in the best location possible, full of restaurants, local stores and interesting and charming things to see.
The room I booked was big enough for two people and the bathroom was always clean. Also, the fact that the building has an elevator and it is near the Amsterdam Central Station is a plus.
I surely recommend this place.