It was a lovely place to stay. we were only two so the apartement was very big and spacious for us. Julia and Ricardo are reactive and answer quickly to any questions.
I really recommend this place to anyone.
Just a few things to know that we understood a bit too late : (about metro and buses !) you have a bus just downstairs (line 712) which goes to santa apolonia which is a metro station. But I never managed to get on it. However if you go to rua da graça, do not stop at the first tramway stop but go a little further and you will find another bus stop and tramway stop (bus line 734) and they are far more frequent. The bus is also more comfortable than the tram which is always full of tourists. Also my advice is to take good walking shoes (lot of steepy streets, and also because the neighborhood around Julia's place is nice to visit and just walk, it's very typical.) You have nearly everything you need in a 10m walk radius from Julia's place. And you can walk down the Alfama to the Tage river and to the city centre, it's beautiful !
So don't hesitate for this apartment :)