A great find!
We enjoyed out stay in Andreia's Airbnb. It is just as described and we found it to be clean, comfortable and well equipped. It's location is ideal for exploring Porto. It is literally 'just round the corner' from the Metro station, but we also walked from the apartment down to the river front (approx. 45 mins) on several occasions.
Andreia was very easy to communicate with and met us at the apartment as planned.
There is a supermarket within 5 mins walk, a great pizza restaurant opposite and numerous cafes and bars within 10 mins walk.

We would happily recommend this Airbnb to other travellers :-)