Celso is such a friendly and welcoming host! He was accommodating to a last minute booking request and told me everything I needed to know (and more) for my stay in Lisbon. Very quick to respond and made himself completely available for any questions, etc before and during my stay. Simple guest house with what you need, shared bathroom right next to the room and kitchen/living access. Only downside to the place is the noise, which could be a problem for really light sleepers who don't use earplugs. It's on a busy street with foot and car traffic. I slept fine while I was there, but did note that it wasn't quiet while the window was open. I'd stay here again without a question though!