What can I say except repeat what many others have already said. Great location, unquestioned value, wonderful host, very nice flat with a fully equipped kitchen, topped off with a free bottle of wine, fruit, and cookies! Having said that, we didn't spend a lot of time in the flat as we were enjoying our quick visit to Lisbon.
There are many restaurants close by, as is the train station, bus stops,and the subway. Just be aware that it is downhill from the flat, but uphill getting to it. And then there are some steep steps in the building to get to the apartment - no elevator. It is on a side street, which tends to keep the noise down.
Highly recommended.