We cruised on the Avalon Creativity in late September. We got really lucky and had fantastic weather.
I absolutely fell in love with river cruising. It was awesome that any time you looked out the window or over the rail, there was something to see. You were always within yards of the nearest shore.
All of the rooms on the ship were large compared with most of the ocean going ships. The bathrooms even had a decent size shower.
The cabin had a massive closet and lots of additional storage cabinets. It is not even possible to fill them all. On this ship, the closet and cabinet space is the same in all cabins.
There was a massive sliding door, with a railing outside. This allowed you to stand in the open door, or sit just on the other side, even thought the ship is too narrow for balconies.
The bathroom was all marble and granite. And the room was kept immaculately clean. The room was very quite, but most of the ship was.