I enjoyed my time at Sachas flat. It was clean, my room was really big and Sacha was always friendly and helpful. The way to the city is lovely to walk (for the way back I recommend the Bus) - I think it is good located. The flat has everything you need for cooking and there are supermarkets very close. I can recommend to stay here. Just one tipp, take earplugs with you. My room was to the street-side and the house is a little bit clairaudient, so two of my four nights got a little bit interrupted, but all in all I had a great time at Porto - thank you Sacha