It is a clean and cute apartment. 6 floors to climb indeed but Estibaliz is welcoming. The white wine was very appreciated and nice. Very centrally located. If you have a car you will easily find a parking about 5mins wall but very expensive (about 30euros for like 1 night and 2 hours- don't really know if that's the case in central Madrid, but at least it was underground). I would recommend this apartment! Thanks Estibaliz!