I was traveling with a friend and we stayed 4 weeks in the apartment. It is very big and you have nearby the kitchen and a toilette. The showers are downstairs. we enjoyed our stay here because it is really central (but from the metro you have to go 5 minutes up a hill, so this will be a good training).
Maria was always available at the reception and the caretaker was very gentle even though he couldn't speak english.
What we didn't like is that we had some friends visiting us and they all had to pay 15€ per night.
But all in all it is like living in a hostel with private rooms