We took this trip in mid March of this year. Our guide was outstanding. This was our 2nd River Cruise with GC. The 1st was Ok but this one was unsatisfactory. On a 1-10 basis I would rate it a 2 with 10 being the best. We we were very unhappy with the dinner menu. Blood sausage was featured one evening. Whenever we ordered fish or sea food it was very dry and chewy. When i go on a river cruise I look forward to the food and there is a problem when the buffet breakfast is better than any dinner. Trust me when I say that the hotdogs, hamburgers and french frys were the best choice most of the time.
Our Captain was not friendly. Whenever we would pass him he would look the other way. He sat at his table mostly by himself.
My advice would be to not take the optional castle tour because it is very hard walking. I did not get to see anything the guide discussed because I was helping a couple of other guests try to keep from falling. One lady fell on her face and broke her glasses and no one from the cruise line tried to help her. My wife had a band-aid and stopped the bleeding. The non-optional castle trip was excellent and very informative.
There was very little entertainment after dinner. This trip was not worth the price. They seemed to "cut back" on everything they did. We have traveled on other river cruises and this one was by far our worse.