This was a great deal indeed! Even though I didn't meet with Nuno as he was traveling himself, his cool friends Joao and Tomas made sure that I felt perfectly welcome, gave me basic tips on where I was and where I should go and and generally created a great vibe there for me.
The apartment itself was nice and big, super clean and very tastefully decorated. You gotta love the views which you can see from the windows there too. I really doubt it there could be a better location for anybody who is coming to Lisbon to visit. It's a walking distance to everywhere, all the services and a lot of places to eat are around, the Bairro Alto bars start just a bloc away. There is an ATM right in front of the house and a taxi stand just accross the street.
If I ever come back to Lisbon, hopefully there will be a place for me to stay at Nuno's place again cause I wouldn't change it :)