Marti is full on brilliant and this was recognized by the University in her winning of an award for the best graduate instructor in Music Humanities. In addition to being smart, she is incredibly humble and never talks down to the class (and we asked inane questions all the time).
Like every instructor, she is limited by the Eurocentric motifs throughout the course, but she worked to include a few composers when she could, that were not "dead, white, males", an effort very much appreciated by the class. My personal favorite was her inclusion of Clara Schumann's, Piano Scherzo Number 10, arguably the best piece we listened to all semester.
In addition, she was very clear about her expectations. She gave us essay questions for the exams in advance, and was more than willing to provide guidance if we needed it. I was very grateful, both to know what was expected, and to have her assistance in being sure that I met those expectations on the assignments.
I can't say enough nice things about her both as a person (she is very kind, genuine and willing to help you) and an instructor. I was lucky to be in her section.