Tiago was a fantastic host. He responds very quickly, and is incredibly accommodating. His apartment is beautiful as well.
Pros: Very clean; open and large floor-plan; bedrooms/baths are on opposite sides of the apartment, providing great privacy; excellent closet space; very easy check-in and check-out; fantastic views of the city (it's on the 8th floor); fantastic location - a three minute walk to a major metro station and a one minute walk to a bus stop; very bright and airy; small balcony space to stand out on; updated throughout, especially the beautiful bathrooms; both beds are queen/king sized; the A/C works pretty well; and it's only a 15 minute drive from the airport.
Things to Note: The beds are very firm (I recommended to Tiago that he provide featherbeds for those that prefer a softer feel); there are two A/C units - one in the living/dining room and one in the master bedroom - however, there isn't one in the second bedroom.
All in all, I highly recommend staying at this apartment!