Although Im a Portuguese speaker, I'll write my review in english so it can reach anyone around the world interested in staying at Casa 5.
Very comfortable home, cozy and very well decorated. Space is great and location is amazing. Literally steps away from the coast and all kinds of restaurants in the Foz neighborhood. Also close to supermarkets, grocery stores and wine shops (if you fancy cooking at home). There's a couple of pharmacies just around the corner but I hope you don't need one during your stay.
The hosts are incredible, with the best tips in town, they are sharp on schedule and communication.
I strongly recommend anyone planning to go to Porto to stay at Casa 5. Im confident that you'll have unforgettable memories about that place!