We would 100% recommend this apartment for anyone looking to be in the heart of Porto. You're a 3 minute walk from the water, within walking distance of port cellars in Vila Nova de Gaia across the Douro River, and within walking distance of several churches, great food, and the Sao Bento train station.
The apartment itself was very clean and cozy - it was a great place to come back to after a fun day out in Porto. Eduardo and Elisabete did a great job of stocking the unit with convenient amenities, namely a coffeemaker, along with plenty of silverware, dishes, and glassware to have a home-cooked meal if we had wanted to.
Their hospitality was also much appreciated, as they were easy to contact via WhatsApp/email, and at check-in, they passed along some great food/wine/entertainment recommendations for us.