Our stay on the Gaia side of the Duoro river was wonderful. The location was perfect for all the port wine houses. The lower bridge to cross over to Porto proper was a very short walk. If you preferred not to climb many stairs, a funicular was right across the river. Additionally, you could walk 10 minutes to take the tram to the upper bridge for an easy walk into town. Plenty of restaurants, bars, and places to see nearby. Great space for 2 couples traveling together.