The apartment was wonderful and Nelson was very nice and patient with us. The response time from everyone was amazing.
I will try to say some things that others did not. We had a third person decide to stay with us. The living room is actually a separate room (which I couldn't tell from the photos), so our friend virtually had her own room!
The beds are comfortable and even though the street is exciting and hopping, if you close the windows, you can't hear anything.
There is a wonderful, inexpensive bakery down the street. Try their Nutella croissants and Latte. The people in Portugal are some of the nicest in the world (they are tied with the Irish people, in my humble opinion).