Sergio's is one of a kind, his look/guide book is very comprehensive. Upon arrival he takes the time to explain the lay of the land so to speak. My husband and I loved Lisbon and having access to all his maps, suggestions and tips made our trip that much better. Definitely recommend Sintra, it is well worth it. The location of his apartment is central, so you have everything available to you in walking distance. The apartment is spacious and the decor is beautiful. We hope to visit Lisbon again in the near future! Thank you, Sergio :)