This is a very comfortable place for 2 people to stay for longer periods of time. We stayed for 8 days in Lisbon, and we like to hang out in the apartment after a busy day of sightseeing, so we were looking for something more than a bed to spend the night in, more like a temporary home - and we found it! The bed was hotel-quality - great linens and pillows, very comfortable. All furniture was new, the flat is renovated and very clean. It's rather spacious for Lisbon city center standards. A thoughtful touch is contemporary novels selection in English and a bunch of New Yorkers to peruse! Location is also nice - very close to Bica line if you don't feel like climbing all the way up to Bairro Alto, and some nice shops/restaurants/patisseries around. A lot of people were trying to sell us drugs in the night, which was a bit uncomfortable, but I guess they were harmless.
The only minus for us was that the flat tended to be noisy - we heard upstairs neighbors a lot when they were home, busy moving the furniture and dropping heavy things on the floor, - and that there's no real window (the one window to the street had to be closed for privacy at all times since it's the ground floor), so it's hard to judge time of the day or weather when you're inside. However it didn't change our great impression from the flat. We might be back! Thanks!