We just came back from a Christmas Markets river cruise on AMA Waterways Amacello. It was pretty good. Cabins were 170 sq ft and had a french balcony. Food was pretty good but menu was limited. Wine included with dinner was ok. Excursions were generally excellent. I would recommend AMA primarily for the ships along with decent food.
"Carpe diem quam minimum credula postero"
Seven Seas Explorer - Miami - Venice - Mar 2017
Silverseas Explorer - Arctic - Aug 2017
Seven Seas Voyager - Rome to Beijing - Oct 2017
Seven Seas Mariner - Lima to Buenos Aires - Jan 2018
Silverseas Explorer - Siberia - Jul 2018
Seven Seas Mariner - Australia Circumnavigation - Dec 2018