@azalice, I'm glad Tom and Judy stopped by and gave you their impressions.
Some people don't care for the decor on Uniworld. I would characterize it as ornate. I've done 3 cruises pre-Covid on Uniworld, 2 on the Danube and 1 on the Rhine. All were well done and I was satisfied with the tours, food, and service. As Tom and Judy already pointed out, a lot can depend on the cruise director.