We cruised from Prague (actually a bus trip from Prague to Vilshofen via Regensburg) to Budapest.
We had a Category C, cabin 230.
Embarkation at the Hilton Old Town was quite easy. AMA sells a pre-tour which stays at the Hilton. We stayed there on our own, and there are other hotels on that block. All you need to do is get your bags to the bus in front of the Hilton by the departure time. AMA will load all bags, other than the smallest carry-on (purse or back pack), in the luggage compartment of the bus, and it will not be available until the bus reaches the ship. No roll aboards in the passenger compartment.
Small room (but typical for river cruising). Small bathroom. Our friends had a larger room with a real balcony. Having made the decision pre-cruise not to pay for a bigger room, I'm comfortable with that decision.The bathroom is small and space is tight. There is not room for two people in the bathroom at the same time. The shower is small and odd shaped. The electrical outlet in the bathroom is behind the medicine cabinet door, so you can't plug something in and use the medicine cabinet mirror at the same time. There is an additional mirror.Internet service in the room, but internet service anywhere on the ship was the worst we have ever had.Flat screen TV, but it suffered from frequent pixilation and freezing, making watching anything with a story painful.Excellent view from windows, but often tied up to other ships without any view. A view from the room is not essential. I would take this cabin again.