Cristina's apartment is a very confortable and very well decorated (it is exactly as shown in the pictures). It's located near to Casa da Musica (from the airport, it's a direct metro line). Cristina has been a good hostess. She handed us the keys herself at the agreed time and she was explaining us how is working everything (we had the good fortune of being her first guests so all things were new). If you want to visit Porto sometime, I recommend this apartment.