This is the place to stay!!! Of course great views but also a great location! You can walk to ribiera in 10 minutes, the caves in less and up to the top of Porto where theclerigo tower is in 30mins. You are only minutes away from either the lower bridge to the Ribiera or the top bridge to the higher part of Porto. Nova Gaia side has lots going on too! Katia spent a half hour telling us about the place and giving us suggestions. Ricardo has put a great book together highlighting many of the Porto attractions and listing restaurants.
The apartment has everything you need and is so spacious. We stayed at 3 airbnbs in Portugal on this trip and saw several others( that friends and family rented) and Ricardo's was the best!!!