We are a big family of 10 people (including three little kids) that was in Barcelona to comemorate my father's birthday. Alex's apartment suited us perfectly. Its rooms were plenty in number and space to accommodate everyone. The fact that it had four bathrooms also made it very easy for everyone. The apartment is fantastic, in a clean style, with a large living room and spacious kitchen.
I should also emphasize Alex's attention, leaving several recommendations and orientation to get around in a very clear manner. The apartment is not located in the touristic area, which made it easy to relax, and there is a subway station pretty close, that can connect with any part of the city. I recommend staying here to everyone in search of a big apartment in Barcelona.