Mara´s flat is really beautiful (it looks exactly like on the pictures), very clean and in a great location. Mara is very friendly and welcoming, it is very easy to communicate with her. The flat is suitable is big enough for 4 people. We only stayed one night, but the flat has everything you need even for a longer stay. I 100% recommend staying there - if you are looking for some place to stay in Porto, you don´t have to keep looking, you have already found the best :)