Silvio's apartment is clean, modern, and comfortable. Everything you might need is provided, including a thoughtful welcoming package of snacks. The small terrace was a very pleasant place to relax with a glass of wine between a long day of exploring Porto and a late dinner. The parking available behind the apartment building is very helpful, though I had the impression from the Airbnb listing that it was included with the apartment booking. There is a 5 Euro per night charge-- well worth it.
I was a bit uncertain about convenience of location when I booked, but the location is excellent. We were two-three blocks from the Bolhau metro stop, but easily walked to every place we wanted to go including the Se, the Estacao da Sao Bento, Ribeira, Ponte Dom Luis I, and Avenida dos Aliados.
Our contact for the apartment was Adriana, and she was fabulous. She communicated efficiently by email before our arrival. She was at the apartment to greet and orient us, and gave us great suggestions for places to see and especially places to eat that are not just tourist spots. She even offered to help us book tables, though we were able to handle that successfully ourselves. Adriana is so friendly and enthusiastic about Porto that she helps make your visit special.
Silvio's apartment is a great place to stay in Porto, with an added bonus if you get to interact with Adriana