The host is responsive and the location is good but I would not recommend this place unless you really only care about having a place to sleep. It is totally fine for that. It's not that there was anything horribly wrong, but it was just not very nice, especially for the money. First off, it's much smaller and darker than the photos. You have to keep windows always open otherwise it gets hot and humid inside but then there is street noise. The small bedroom has no windows so it gets hot and stuffy unless you keep the door to the living room open so then you have no privacy. Also it has nowhere to hang clothes. Many things are cheap and janky (bed lamps had broken and torn shades, towels were so worn they had holes, the furniture is laminate not real wood, the chairs, nightstands and mirror are shaky, the drawers in the small room don't open). The couch and bean chair are now grey so not the happy bright colors you see in the photos. The bigger bedroom has weird layout: the foot of the bed is 8-10 inches from the wall so it's really hard to get to the other side of the bed and the window. There is a painting on a narrow wall in the living room that is too big for that wall and sticks out 4 inches on each side, it looks so silly. Again, mostly small or medium importance things, and as I said the host was responsive and fixed some things I asked for (eg the bathroom door had no handle so you couldn't close it to have privacy so they came and installed one handle on the inside only), but it just added up to a feeling of being in a roadside Motel 6 in the U.S.
Keep in mind that the stairs to the second floor are steep! Definitely hard to climb for anyone over 60 even if they're in great health and shape like my aunt.
I thought may be this is just standard for that price range for Lisbon but after my aunt left my partner and I switched Airbnbs and the new one is in the same neighborhood for a similar price and it is a hundred times nicer, it feels like a fancy hotel. So there are definitely better options in the area if you care about having a more dialed-in experience like I do.