We chose this Cruise after a presentation and booked immediately without shopping or comparisons and Wow did we pick a great one.
WAB 503 Amsterdam to Budapest.
the only complaint I can think of is the parts of the river I missed during the overnight sailing.
I had no problem at all with being on the lower deck, in fact it might have been quieter down there. Lovely room, excellent bed and bedding, large bathroom and shower with quality toiletries.