So we stayed here 5 days. It was ok. If you are looking for a place for sunlight, this is not quite that place. There are windows but since there are some people touring, they can somehow see inside. At night time the windows must be closed because the internal light makes it very clear to see the inside. We received a welcome wine package and clear instructions. That was a great plus and we felt at home. Although it can get humid at night mostly during the rain season.
The bathroom is a plastic curtain, so if you go to the bathroom, some noises can be heard. I think is ok for short stays. Other than that Alfama is a great place to walk and tour restaurants. Never felt unsafe.