Our 11 day Avalon cruise started with three days on land in Prague. Very nice accomodations, great city tour. We met on first night with cruise director, at that time concerned travellers questioned the river levels, as we heard they were low. We were told that by the day we were to sail, that the water levels were probably going to be okay. We were lead to believe that somehow the water levels could be manipulated by man power, dam? Departure date came and we were given a choice to see Nuremberg by bus, as we couldn't sail, due to low water, or take a bus to A small village up river where boat was docked. To see Revensburg, we also had to bus, ship couldn't get there either. Did not dock in Passau, had to be bussed there from village. Avalon advertises their cabins with the great view. Anytime we were docked, there would be another ship parked directly beside us, never even got to open curtains. Our sailing was done in early evening or night, so never got to see the wonderful sights advertised. We did dock in Linz and Budapest, so we were able to go ashore to explore on our own. Daily tours were really early.
Biggest disappointment was that we never got to enjoy the views from our cabin, which was explained to our group the last night: reason being that River cruising is so popular that there is not enough port space for the ships.
The staff on the Avalon Vista was great, cruise director not so much.