We were in Lisbon for 6 days. It was a very pleasant stay in the apartment. It was small, but nice: a nice view over the river, everything you need is in the apartment, including hairblower, microwave, tv, everything in the kitchen to cook. The shower was also small, but very nice.
In 6 days we've seen a lot of Lisbon. Most of it we visited just by walking. Of all the parts of the city, we liked Alfama (neighbourhood where the apartment stands) the most. All the small alleys up to the hills with small restaurants and nice shops and other nice places to visit (castle, cathedral, churches, places with panorama view over the city, tram 28).
The welcome was nice. Gonçalo brought some pastries, 'ginja' and told us about the history of the neighbourhood and other interesting information about Lisbon. He also left a folder with information about the metro, nice places to go or to eat, etcetera.
For the next morning he bought some fruit, yoghurt and bread for us.
I would definitely recommend this place.
It's easy to reach from the airport: just take the red line of the metro to S. Sebastiao and there change to the blue line to Santa Apolonia (last stop). From there it's about 10 minutes walk. Very easy.