Our stay at Maria's was lovely. She was an impeccable host, warm without being pushy. We got coffee and towels, and she explained where we could find a bar on our first night.
The flat's interior is pleasent, everything is in good shape, clean and tidy. We had no complaints.
The flat has a supreme location, about 10 metres off La Rambla. Plenty of nice bars around, and the port is easily in walking distance.
Overall I would definitely recommend this place. Good value, with a pleasent apartment and a lovely host. I reserve the fifth star for truly great value for money, and La Rambla is a bit shady at night. So don't get the wrong idea from that;) I hope to stay here again.