The apartment is located in the heart of the city, a walking distance from main attractions of Porto, near many pleasant restaurants and bars. The apartment itself is spacious and sunny and well equipped. I really liked the interior too - modern with artistic hint. Although there is one double bed both sofas were comfy. It gets a little noisy in the morning when people rush through the corridor, but, on the other hand, I didn't mind the music playing in the bar nearby, because it was just a non disturbing background sound. Maybe it gets worse during the weekend.
Carlos is a great host and has many valuable recommendations. He also prepared a short guide with useful tips about the city, for example where to go or where to eat. We followed some of his suggestions such as to visit Flow restaurant which is half a minute away from the apartment and we were very pleased with the food. Carlos offers a pick up from the airport (extra charge) which is very convenient, especially when you arrive late.