We stayed at Diego's place for 3 days in the middle of September and we loved every minute of it!
Diego met us in person for check in and walked us to the city center for a quick tour.
He was very friendly, responsive and incredibly helpful. We wanted to go to a football game in the evening, so Diego arranged tickets for us and he also drove us to the stadium.
The place itself is exactly as you see it in the pictures: very cosy and stylishly decorated, with a lovely small balcony.
Location is also great: couple of minutes walk away from the metro and around 7-10 from the heart of Porto.
I definitely recommend both the apartment and Diego as a wonderful host!