Sergi was very quick to respond to queries both before and during our trip and made finding the apartment very easy. He was very welcoming when we arrived and showed us everything we needed and told us where we could find something to eat ( at 11pm ) and where the nearest supermarkets, market and bakeries are. All are very close ie on the same block as the apartment.
The local area is very relaxed and well situated to reach major attractions either on foot ( eg Sagrada Familia - go inside, even if you have to buy the tickets in the morning and go back in the evening as we did , its like nothing we've ever seen before, stunning ), or using the fantastic and cheap integrated public transport system.
The apartment was just as described, roomy, comfortable and well equipped.
Great trip, Fabulous city, Great host, Thank you Sergi