In summing up my three-night river cruise on Riviera River Cruises‘ m/s Robert Burns, two words come to mind: pleasantly surprised. The company’s newest ship was christened last week in Vienna before setting sail to Budapest with North American cruise sellers and myself aboard. Riviera River Cruises is a U.K.-based company that only recently began marketing to North American travelers. Next week, I’ll report on the six key differentiators that I feel set Riviera River Cruises apart from its competitors.