The cruise destinations fit our schedule, and the price was right. The Amastella is a new ship, really clean, even the engine room which I toured. Good activities at all ports of call, everything from hard core biking to gentle walks. 30% did the strenuous hikes, 30% did the gentle walks, and the rest did something in between or stayed on board. The food was good, with complimentary drinks offered at lunch and dinner. The crew were vey attentive, always filling your plate or glass. Everyone on the crew was approachable, from the captain, cruise director, bar staff, and room attendants. The pool on the upper deck with a swim-up bar was a nice touch that you don't see on many other vessels. Favorite ports were Vienna, Brattisava and the Budapest Illumination tour. Transiting all the locks was interesting, but maybe doesn't compare to the Panama Canal
I would do another cruise, just need to find a destination.