My criteria for a place to stay in Lisbon were: two bedrooms, a balcony, somewhere central/walking distance from the main sights. Nuno's apartment met all of these criteria and more. It's a beautiful space, charmingly decorated - right in the heart of Barrio Alto (but well soundproofed). The views are amazing and you can walk to everywhere you could possibly want to get to.
Nuno was a fantastic host, flexible, responsive and positive. I couldn't have asked for more and I suggest you book right away before someone else does!