First of all, Raquel is a great host. She is very easy to communicate with and very hospitable. The apartment is great. It's in an old building and is very cosy. It's small, but you'll have enough space. I stayed here with my mother and sister and had a great time. We did use the sleeping couch, because the beds ar not that big. The location is perfect I think. It's is easy to reach from the airport by metro and yo can walk (or take the tram) to all the main sites. Principe Real is an nice neighbourhood, with nice little shops and places to have something te eat or drink. I recommend Confeitaria Cister (around the corner at Rua da Escolar Politecnica) for breakfast, it's local place for a sandwich and coffee. On the same street you've got a place called Cochinchina with great Vietnamese food. Also the Botanic Garden across the street is worth a visit. So, when you go to Lisbon, stay at Raquels place!