We were a family of 8 and stayed in the AlfamaChic1 apartment. Although the initial impact was disconcerting (an old bathtub as an interior feature!) we all grew to love the apartment and its history. The photos do not do justice to its size, with a huge living room that captured plenty of sunlight during the day. Also, don't let the color scheme put you off... it works much better than on the photos.
The location was also excellent, with many good restaurants, mini-supermarkets (one full size supermarket) and retail shops all within 5mins walk. AlfamaChic1 also provided a good starting point for short walking tours of the Alfama and Bairro Alto historic areas, as all the key places were within a 30-45 minute leisurely walk.
Overall, I would recommend AlfamaChic1 as we stayed a week and had a great time.