This is a beautiful flat in a perfect area for exploring the city. We really appreciated the welcome basket of food and the sumptuous bedding and towels - and the shower was amazing - which is rare!
The only only slight issue was that it is very hard to siesta in the main bedroom as there is a bus stop outside the window and people are talking - it is fine at night. The second bedroom is also a little stuffy as it doesn't have a window.
But I would definitely recommend this flat to travellers to Porto - Ermelinda is lovely and helpful and generous.