Scenic River cruises are the 5 star of River Cruising.
The ship was fantastic, but the cabins are a little small.
The dinning was exceptional, more selection that you can imagine.
The rooms are very cramped.
There is no need for a King size bed (77x80), a queen size bed (60x80) would do and give you 17" more space in the cabin.
The balcony space is of limited use. It would be better to use the "Dutch" balcony approach, and that space now used for the balcony would be useable space within the cabin. To experience the fresh outside air, just open the balcony door and your whole cabin is part of the balcony.
Using these 2 approaches to the size of the cabin, Scenic would likely have one of the largest cabins in the River Cruising business. Something I see as a big seller.