We did the Rhine a few years ago and wanted to try the danube. This cruise was a little different as most of the cruising was done at night. Just different from the Rhine where we saw more scenery. Tours were good, but we did not take advantage of the optional tours, there were a few that we should have done. Thought they were a little more pricy that I would have expected. Food was great and staff was excellent. We did the drink package that was more expensive than the Rhine $190 vs 100, but still a bargain. Many guests got it as a perk for cruising. We may do another in a few years. The Paris to Paris looks interesting and we may do if they offer some perks. The only criticism I would have is that the internet was painfully slow and did not reach around the whole ship. Maybe if Starlink becomes available Viking will use it.