I had a fantastic stay with Kar, Juan and their cute little dog, Cumbia, in Barcelona. Kar was very prompt in messaging me after I made my reservation to suggest how to get from the airport to their flat on public transportation. They were excellent hosts: welcoming, kind, fun and extremely patient with my rusty Spanish conversational skills. Their flat in the Poble Sec neighborhood is convenient to Montjüic and easily walkable to Las Ramblas and the Gothic quarter. The Poble Sec metro stop is only one block away. Have a coffee or sandwich at Cafe Cometa---recommended by Kar and a wonderful neighborhood gem.