"Casa do Duque" was one of the best decisions we made for our stay in Lisbon. It's very conveniently located near the train station and within walking distance of all the neighborhoods that you'll want to go to. The space is super clean, and Mario has made all the considerations for anyone who's staying there short term or long. The space is perfect for two people. Our one regret was that we didn't stay long enough to take advantage of the tours that Mario's partner offers. If you want to do your own thing while staying at Casa do Duque, you can definitely can, but it was good to know that Mario was just a quick text or phone call away if we needed anything. He is super responsive and will take good care of his guests.