I think this is one of the best localizations in Porto to have some time in the city and to go for trips outside because of the Sao Bento station nerby. Apartment is great, clean, sunny, quiet and designed in the way that im sure everyone will be satisfied. Street is quiet as well, lots of nice restaurants for turists nerby, but if you want, you can find something more local.
Joana and Valetim both were very helpfull and answer at any question in few minutes, we felt like we are in good hands.
I recommend Joana s apartment and her hospitality with full resposibility!