Ana's place is definitely one of the best places you want to stay in when visiting the old city of Porto. Right in the middle of Riberia, you can reach most of the sites on foot and you would have thought that in such location the house is usually old, dirty and noisy but this is to the contrary, a very well furnished, clean and quiet (it is facing a lovely courtyard rather than the main street)
Ana herself is a great host, she has helped with answering many questions and gave us tips on how to "surivie" Sao Joao, the busiest festival of the year for Porto. From the decorations you can see she has put a lots of thoughts in the apartment to make it as cosy as possible, and the same can be said on the amenities she provided for her guests (i dont see ear plugs provided in many airbnbs before!) and they saved my day during the festival night, but other than that the apartment was very quiet and peaceful at night)
Definitely will go back if I stop by Porto again.