We stayed 3 nights at Goncalo's place, it is well situated in Lisbon in the Alfama district. Goncalo was a great host, he brought us some delicious portoguese sweets. The apartment is very well decorated and has all the things you'd need during your stay and there's a great view to the river too :) We liked it a lot and also it was really easy to get into the center from there. I can recommend it!