I had a lovely time with the other 8 passengers. The bed was very comfortable. Mooring in the locks made for a comfortable sleep.
The food was fine but extremely limited. If smoked kippers were not to your liking you'd be waiting till lunch for anything to eat. There were no food choices aside from what was put in front of you. If you like a drink, now is the time to change your habits. Is a glass of wine with lunch too much too ask. You'd need it to choke down the cold-cuts and bread roll served for lunch.
The scenery was lovely, the other guests delightful but the captain and crew need to understand that it guests are paying top dollar for a trip, you should have the service to match.