This is a great place very well located, spacious, and clean. João and Fabio do an excellent job and they really seem to care a lot about their customers. They felt like friends who wanted to make our stay as pleasurable as possible. João even helped us with tips after our stay when we went to other cities in Portugal.
As others have noted, this particular place is in an old building with no elevator so be ready to climb 4-5 flights of very steep and narrow stairs. But you’ll be doing that all day in Lisbon so it might not seem like a big deal. There is a bit of noise from people at the bars down below at night, at least on the weekend we were there. Nothing huge but light sleepers who need absolute silence may be have a hard time.
We highly recommend.