We stayed here for a week and really enjoyed our time here: It's close to Bairro Alto and has many restaurants around. The kitchen is small but well-equiped, the flat cosy and it's very clean. The communication was always very good and friendly, we felt well taken care of! They even left us a complimentary wine.
As said in other reviews, the neighbours dogs are loud but with the closed windows (in November) we slept great, if not, they leave ear plugs for you on the bedside table.
Thank you very much Goncalo & Miku, we had a great time here!