This was out first river cruise. Everything was very easy and relaxed. The port is located a short distance from the train station. You will need to walk down to the pier which can be hard when you've got luggage. Once we arrived we simply walked right on the boat. Our room was ready and the bar was open! We did not leave the port until the following evening, so we were able to come and go as we pleased.
I loved our room. We upgraded to a C cabin which included a french balcony. The only complaint is we never really had an opportunity to enjoy the view from our room. This is because we would leave the port at the time of dinner. So by the time we got back, it was dark. Or during the day, the boats are parked right next to each other, so again, your view is blocked.
All of the walking tours were fantastic. However....it is a LOT of walking! Make sure you have good walking shoes as most of the streets and pavements are uneven.
Nice big room. Nothing fancy but very comfortable.