Very comfy, clean and well equipped apartment just in the perfect place in Porto to stay. The apartment is fully capable of serving you for 1-2 weeks of stay, or even more. The kitchen is fully equipped, as well as the bathroom. The street itself is a bit noisy (obviously, as its basically in the center), but if you close the windows for night, the apartment becomes a fully quiet place to get some rest. :) Maybe the mattress in the bed was a bit too soft. :)
Basically everything is in walking distance, even the Trindade metro station (which is the end station from metro Line "E" coming directly from the airport), from where you can go basically everywhere.
This delightful city is full with life during August, its really worthy to plan 3-4 days at least only for exploring Porto itself. We stayed for 11 nights and made longer trips in the region as well. And we even missed out on some places, because of the 'short' timeframe, so we will definitely come back at some point. :)