great stay and great location!
just tow small things to keep in mind - its downtown and in a busy area which is what makes it great but its also really loud at night - all night! between the people, the garbage trucks, the street cleaners etc. it was bustling the entire night.
Also there is no air conditioning in the apartment - ceiling fans were nice but still pretty warm.
Barcelona is wonderful and staying at this apartment made it easy to do many things.