I agree with everything Olivia said.

I would definitely get a suite if you can swing it $$, more square footage, more storage and a very nice bathroom like Voyager's with separate shower and tub and lots of storage. We also seemed to have better internet connectivity than other cabins. I think 7 days is the perfect time for the ship.

I wouldn't recommend riverboat trips for people with mobility issues. The towns are all cobblestone roads and there are many stairs in the European cities. Europe is so old and they sure didn't have things like elevators or escalators in those days. Unike a cruise ship where the ship itself is a destination, river boats are all about getting off the boat and experiencing the sites.

As far as riverboat companies go, I think AMA is fantastic. I heard from many who have experienced other companies that it is the Mercedes!