Fernando's place is just perfect. It's a beautiful apartment that feels like home. With large windows, very high ceilings, lots of light, god mattresses, new bathrooms, a large kitchen and a tasteful decoration. It really felt like home, my family and I just wanted to move there and stay in Lisbon :-)
When it comes to the location, it's 5 minutes walk from Praça do Comércio, basically it is at walking distance of everything with tram 28 as the closest public transport.
I will definitely rent this apartment again next time I go to Lisbon.