Although the cabins are smaller than on the other Uniworld boats, they are well laid out and more than sufficient for this length of cruise. The bed was extremely comfortable and made/turned down twice a day. Bathroom amenities were high quality and plentiful.
The meals on the boat were much better than the high expectations we had for them. The chef's were GREAT and funny. The dining room manager made sure that everything ran smoothly and our waiter (we tried to get the same one every day) was super. Food at every meal was plentiful and no one should go away hungry. Uniworld provides free wine at dinner and you didn't have to ask for a refill. As soon as your glass was 1/2 empty, it was refilled.
There was a wide variety of passengers on the cruise with an average age in the mid - late 50's (I guess). It was a lively trip with a lot of new friends made.
Check in and check out was very easy and totally transparent. When we arrived, our suitcases disappeared and reappeared in our cabins. At checkout, our suitcases were taken directly to our taxi that morning. No "put out your suitcases the night before departure."
Our cruise manager was EVERYWHERE! He made sure everything ran smoothly and kept on top of all the off boat activities. Tour guides he arranged were very good, knowledgeable, and friendly. Anyone traveling with Marcus will be pleased with his service.
I have to give a special commendation to the Captain and his navigation crew. The Rhine was at the lowest level it had been in 6 years. Other ships were putting passengers on buses to take them to ports, but our captain was able to safely get us to every port without problem. I can't say enough good things about the navigation staff's professionalism.
Bottom line -- definitely take a Castles on the Rhine cruise on the River Ambassador.