I have to second many reviews on here. The flat is really well located, even train to the airport is just a short walk away.. Anabela is very quick to respond to any question, and even helped me find a language class while I was in Porto, not an easy task, since schools were all online/closed.
The apartment is small, and at first I thought maybe it's too small, but it's very comfortable especially since I was by myself, and had everything one may need. The Wi-Fi is really good, so if someone is looking to work as I was it is perfect.
I was also grateful for the heating and extra blankets: Sun only hits the back balcony for a short time, so in summer I think it's a perfect refuge from heat, but in spring nights were still chill.
In short, it's a really nice stay in Porto, thank you Anabela.