We had a very pleasant stay at Lucas' apartment which was the very start of our trip in Spain. And was a very comfortable space to get over our jet lag! It's very spacious so was great for the kids. Also a fantastic location in the Gothic Quarter. Close to shops, supermarkets, restaurants, tapas, and lots of sight seeing spots too. Lucas was great with communication and we were met by one of his colleagues for an easy check in. We found the QS bed a bit too hard for us, especially with sore backs from our long flight from Australia, but others might like that. The single beds were very comfy for the kids though. Highly recommended.