I arrived by train and Carlos let me know that my ticket included the local trains (cercanias). He then live guided me on how to take the local train to the apartment.
The apartment itself was in a great central location with lots of shopping and restaurants around (just ask Carlos). The room itself was pretty big. There were plenty of room for my yoga stretches.
There isn’t much that hasn’t been said in other reviews. Great value, great location, great host.