Very nice flat, quiet place in a nice neighbourood of Porto. You can find all you need around the appartment, there's a subway station just around the corner, and you can also walk down the city center with about 15minutes walk (a bit more when you come back to the flat as it climbs a bit in Porto !)
We had a really pleasant stay, our arrival was planned with Mariana who showed us the facilities and welcomed us with cookies and water. I had an easy communication with Mariana during our stay, she answered all the questions we had, even when she gave me the night bus number to get to the airport early in the morning ! I definitely recommend the flat !