I had four great days in Ana's very nice, and cozy flat. Ana is very sweet, and helpfull!
My arrival time was late, and Ana offered to come and pick me up at the airport. Before my leaving she printed out my tickets, and brought them to me.
The flat was exactly as shown on airBnb, super clean, with lots of sun light during the day.
The area is really nice, with many turist attractions, cafes incloudin starbucks, but many cute and great local cafes, that you have to try. Aswel as shops. The Metro is around the corner from the flat. And of course the water is also just around the corner.

If you plan to go to Lissabon for a shorter, or longer periode I would say, go and stay in Ana's flat. It's like a home away from home, and you have it all to yourself.