Our party of six was exceedingly happy with our stay at Fluvial. It was excellent by any and all measures. The flat was as advertised - a central location with a spectacular view of the Douro River and Porto. Sonia, our host, was OUTSTANDING. She responded to all of our queries and requests quickly and in a well thought out manner. She was at the flat to greet us when we arrived, took us through the details of what to expect and allowed us to check-in early. She was very accommodating with all of our special requests including an additional set of keys, arranging for a taxi when we departed and offered some excellent restaurant suggestions. On a scale of one (worst) to ten (best) both Fluvial and Sonia were a solid ten.