This flat was so great! I've bookmarked it for the next time I go to Porto. The massive French doors look out onto Ruas das Flores, which has a bunch of great little shops and restaurants/cafes. It's also conveniently located to the train/metro station at Sao Bento, the riverfront, the major shopping street at Santa Catarina and a lot of the tourist sites. Joana and her sister Ana were very welcoming and easygoing. The flat was spotless inside, and very comfortable for its small size; we actually came back in the afternoons to rest for a while before heading out again. We noticed a weird rattling one night, but couldn't figure out if it was our flat or somewhere else in the building. You can hear everything from the street but, fortunately, it didn't carry on very late, and nothing from the rest of the building.