Stayed in one Airbnb in Porto, another in the Barrio Alto area in Lisbon and this one in the Belem area all for right around the same price. This was the BEST spot we stayed at during our Portugal trip. Host was amazing and met us for checkin, spoke excellent English and even walked us around town to show us the good spots. Small local Market right around the corner. Close/walking distance to the Belem attractions. About a 10-12 min down hill walk to the main Belem square. Walking back is the reverse - uphill (slight gradient). We walked back after most adventures but opted for an Uber at the end of a particularly long night for approx 4 euro from the main waterfront area restaurants. This place had AIR CONDITIONING units in the bedrooms and it was needed while we were there. This was the only Airbnb we stayed at that had this and it definitely was appreciated. Quiet neighborhood - sleeping was easy.
Only thing for improvement - would be nice to have an iron and ironing board in the unit.