The apartment is beautiful (especially the view from the front porch, and the location is great; very central to the downtown/public transportation/nightlife, but on a quiet enough street that you an get all the peace and quiet you want.
The shower and kitchen are great, and Nuno was a responsive and generous host. Although a friend of his let us into the apartment (who he introduced us to over e-mail before we arrived) he was available over SMS and generally very helpful. I would love to stay here again if I find myself back in Lisbon.