My sister and I had a very enjoyable stay at this apartment. Although we did not meet Maria, I was greeted by a very friendly man (Martin) who was kind enough to find me on the street when I was lost and then carry my 25kg suitcase up three flights of stairs.
The location of this apartment is superb - out of all the neighbourhoods I explored in Barcelona, Born was definitely my favourite. It was absolutely bustling with bars and restaurants at night, yet was distanced enough from La Rambla to not be overly comercialised and filled with tourists. The buildings are mostly all old Spanish terraces that have a beautiful charm. A great stay!