We didn't Alenjandro himself but his friend Julien, since we were all french speakers this made it very easy. Julien showed us around and answered all our questions, he was knowledgeable on the city with very practical information such as parking which is a pain in Barcelona.
The apartment is a great deal with a very good value for money, the terrace is just perfect to eat and relax. The rest is exactly as described on the pictures.
Location is very good too with metro stations within few minutes walk and a very nice little square with few restaurants at the street corner. There's also a covered market very close by.
I definitely recommend this accommodation for short and longer stays.