The Lisbon's experience couldn't be lived better without a friendly and familiar surroundings like Zè's apartment!
The flat is small but very cute and well furnished (personally I loved everything which is inside that house: colored frames on the walls, funny pictures around and lovely pillows), it's comfortable and there's everything you need.
The communication with Zè was fast and easy, in his flat there's also free wifi, that's really a big deal and further simplifies your life.
And what about the neighborhood: maybe the best district of Lisbon! You can live there the real Portuguese atmosphere, small beautiful lanes, with nice shops, restaurants and cafes, two steps by the old walls of the S. Jorge Castle.
In ten minutes by foot you can be in every place of the downtown (Bairro Alto, Rossio, Baixa, Chiado, Bica) and in five minutes to Alfama, another wonderful district with amazing viewpoints on the city you can't miss! Practically we've never took public transports or cabs to visit the city centre.
Honestly I enjoyed so much Lisbon even thanks to this apartment and its location, so I strongly recommend it!

p.s. our suggestion is to try absolutely the restaurant Cantinho do Aziz: two steps by the Zè's apartment, in which you can try delicious specialities from Mozambique in a familiar background (remember to ask the mango mousse for dessert, or one of the other fresh exotic fruits mousses!!!)