I'll stat off by saying that Nuno's apartment was impeccably clean. Nuno is extremely responsive, and never have I waited more than a couple of minutes for his reply. Google Maps pointed us to the wrong location, and Nuno was kind enough to come and guide us to the apartment. The apartment itself is quite nice and functional, nicely situated in the walking distance of the city center. Finally, Nuno did us a favor by taking care about our luggage until the time our train was about to depart.
TL;DR, Nuno is an excellent host with a fine apartment in a very good location. Wholehearted recommendations.