The apartment is on the third floor, be prepared to walk them stairs! We didnt mind at all. We felt like we were leaving like portuguese people. The apartment is beautifullly decorated and has 2 separate rooms which makes it plentiful for 4 people. Its well situated and near the center! You can even walk to the riverfront (20 min). Its in a very ethnic neigjborhood (either chinese or indian) and it might look shady but it was very secure as long as you take the usual precautions. (Id still go back there). The air conditioning does work. I have no complaints! Even used the lonely planet book on lisbon that they have.