I completly recommend this flat as your choice on Lisbon. Is quite near to Baixa/Chiado Metro Station at Praça Luís de Camões, and as charming as you can see on the photos.
The neighborhood is fantastic, the street is quiet but there are lots of nice places all around, to have a drink or to go dinner.

The room is a little bit noisy when raining, but I'm sure that Miguel will head that soon.