Marco is an incredible host - we appreciated his prompt communication and all of his local recommendations. The apartment was a five minute walk from the Santa Apolonia train station (about a 45 min metro trip from the airport). The neighborhood was nicely situated at the edge of the old Alfama quarter and a 10-15 min walk to the castle. Be prepared for lots of hills! The apartment is a newly renovated room in an old building - we didn't mind the three flights of stairs, but be aware that they are extremely steep and narrow (think ship-ladder style). The room is tiny but very clean and well-equipped (iron, hair dryer, small kitchen). Perfect for our 24-hour layover in Lisbon. Only complaint was the bed - it was pretty firm and a little small for two people, but we only stayed one night. Would definitely recommend for short stays. Thanks, Marco!