Hi Alex,
We were just in Lisbon and stayed at Chiado Arty Flats. It is on the edge of the Chiado and Barrio Alto neighborhoods about a five minute walk from the Rossi train station, 28 Tram, and a 10 minute walk to the Baixa-Chiado Metro (with a short-cut escalator) to Baixa. This is an ideal location in a really cool neighborhood.
Chiado Arty Flats I as an apartment/hotel which means we had a kitchenette, daily breakfast service, and spacious accommodations. Our room had an outdoor garden area with a table and lounge chairs. The service was awesome, Tomas and Carina gave us their What’s App number not only for emergencies, but also to answer questions while we were touring from where to eat to how to get back to the hotel. The breakfast was huge with scrambled eggs, yogurt, fruit, pastries, ham, and cheese. Because we had a refrigerator, we could save some breakfast later for snacks.
I really regretted having to leave this apart/hotel. The location, hosts, and facilities were amazing.