We had a fantastic stay in this lovely Alfama apartment. The location is perfect and the hosts were communicative and helpful, giving us wonderful restaurant recommendations.
Though the apartment is nicely appointed and has a unique charm, be warned that the stairway in to the apartment and the spiral staircase are extremely narrow and steep. This adds to the charm... but lifting our suitcases up to the bedroom level required quite some strength. In addition, the bathroom is very tiny and is downstairs, so you need to take the spiral staircase down to use the bathroom at night.
All in all this was a lovely stay and I would stay here again! Can't wait to return to Portugal and to Alfama.