We had an amazing stay at Eugenia's and Luis' apartment !
The flat was lovely, exactly like the pictures showed it and it is perfect for 2 people. You can really feel at home quickly and it is wondefully located, less than 5 minutes walking from the Douro (the main river in Porto), which brings you closer to the porto wine cellars :-)
We walked to and through all the historical center of Porto, with no need to take the subway.
Eugenia welcomed us very kindly, giving us plenty of tips to discover the city and its surroundings in a more historical and "genuine" way than with the tourist guide. She loves the city and succeeds in passing it to you when you arrive :-) Also, she speaks really good french !
And the bottle of Porto in the kitchen was a thoughtful and really nice welcoming gift...
Have no doubt in staying at Eugenia's and Luis' if you come to visit Porto !