There is a very good reason Nuno is a "super host" on airbnb! Firstly, his brother Rui who was our main point of contact was a great guy who couldn't do enough for you. He even dropped us off at the airport when we had to leave! We were given lots of great advice too; places to eat and things to do, etc.
The flat was excellent and we were greeted by wine, bread, cheese and custard tarts.
Location wise, it is convenient within walking distance of lots to do and see and with great transport links.