Ernesto's apartment is in a great area of Lisbon - easy access to train stations, trolleys and walking distance from many popular sights of Lisbon. There is a great restaurant across the street and there are a couple of markets within a 2-3 block radius. The apartment was clean and comes equipped with everything you will need, including maps and literature for area attractions.
Ernesto always got back to me right away and is super friendly as well. All in all, very user friendly and a great place to base yourself while in Lisbon.