Nuno's flat was in a great location right across the road from the waterfront and walking distance from Saint Apolina station which is perfect if you're coming from Porto via the train.
The flat was very clean and check in / check out was fairly smooth. The airconditioner in the middle of July was a nice bonus also! The only negatives were that the place lacked some fairly essential items such as body wash/soap, shampoo, conditioner and milk. Apart from that I would choose it again just based on the location and space alone.