Rosa's apartment was perfect, it is beautifully well decorated, the apartment is big, with beautiful views of the city and the sea. It's located in the famous street Belo Duarte, where the most famous tram is.
At night it is a little loud because it has some bars in the street, but we slept very well.
Although we couldn't meet Rosa herself, she sent a friend of hers that kindly explain everything.
Beware, because it hasn't elevator, but it is only 3 floors.

I highly recommend it!