We did not get to meet Josep in person, since he was away but communication via email was excellent. It was a last minute booking so it was very important for us to get all the information quickly, and we did. He also send us the guide to Barcelona, which was very handy, and we have tried couple of restaurant suggestions and were not disappointed.
The flat is very nice and spacious, it was only the three of plus a toddler, so we had tons of room! Washer and dryer were a big advantage, since our daughter gets messy a lot.
Kitchen is well equipped for eating, got all the plates and cups and so on, but not the best for cooking. It was not a problem though, since we mostly ate out.
The location of the flat is superb, not in the touristic loud and super busy center, yet close enough to it. And the area itself was lovely, plenty of shops and places to eat.
We have enjoyed our stay and would recommend Josep's flat.