We had a wonderful week in Barcelona staying at Pau's apartement. The building was perhaps a bit worn down, but the apartment itself was tidy and clean and in good condition. The location was also good with walking distance to the beach and public transport. Pau was a very friendly host. We never met in person but he always responded very quickly to any questions and provided good and detailed information. He had even designed an impressive homepage with all relevant information regarding the apartement. Regarding Barcelona we recommend a visit to CosmoCaixa, but discourage a visit to the aquarium.