Francisco Javier was so kind as to welcome us with a lot of useful information regarding the neighbourhood and Barcelona as a whole.
He told us about the less touristy spots and gave recommendation about where to eat Tapas like a local. Furthermore we had a minor glitch with a shutter and he rushed to repair it the day after so he was very helpful. The apartment is nicely equipped and quite comfortable, though it might be a bit small for 6 people, but since most of the time we were out it was ok.