My friends and I had a very nice stay at the apartment and enjoyed the spacious terrace. The apartment is close to a main street where you can find different shops and restaurant and also it's a close walking distance to a nice "miraduro", a viewpoint, from which you can see the sea.
There's not an elevator and the stairs are very narrow so be mindful of that, but the apartment is spacious and clean with everything you need. Gonçalo is very easy to contact and very helpful with lots of tips for the city. When we arrived there were Lisbon's famous and very delicious "Pastéis de Nata" welcoming us, a subtle but very delightful and appreciated detail. Would definitely recommend this place!