My experience at Manoel's place was good (4/5). The aspects i didn't like? There were hair in the blanchets, in the floor and in the bed. The guest could didn't provide toilet paper, soap and stuff like these. And the walls are very slim. The old ladies who live in the building are always screaming, talking loud from an apartment to the other one. Their doors are just an optional, always open...
But, as i said, my experience was good. The duplex is well equipped, was quite clean, the bed is comfortable and the view from the window is beautiful. The area is safe, silent and charming.
An advice for the next guests: when you arrive, don't go walking from Santa Apolonia. Climbing the Alfama with your luggage is not a good experience and, although Google Maps, you will get lost in this maze. Call a taxi or take the 28 and get out at the Miradouro das Portas do Sol.