We had a nice stay in the Alfama, the place is super central and there are loads of good restaurants just minutes away in Graça. If you're looking for the ultimate authentic portuguese interior this is not the place, it is pretty state of the art hotel type of interior, with flat screen TV off the wall, and not much character overall.
However the view is splendid.
I rated 3 stars in exactitude because the pictures of the apartment are taken with a wide angle camera and the interior is really tiny (8m2 for the main room?) so your bed is really close to the entrance door. Fine for 1 person that just sleeps there, really tight for a couple. I feel that should be flagged. Overall, the price/quality ratio is just OK.