Our stay at Gonçalo's place was ideal. He was there to welcome us, gave us multiple recommendations (good ones) and even offered some pasteis, bread and fruits.
The place on itself is nice, clean, all we needed was there. His place is at the third floor without elevator (like almost all building in Lisbon) so be brave when climbing with your luggages. But it's worth it ! It was a bit nosy in the evening but it's also because we are quite sensitive to noise. Shouldn't bother you that much.
The location was excellent, we were able to reach almost everything by walk. Close to the subway (7 min) and buses or tram.
I highly recommend his place :)