Catherine is a great accent/communication coach for American English. She teaches in a way that is very different from typical English classrooms. At the beginning of the course, Catherine did a detailed assessment and planned the course with a very specific focus on identified problems. During the 20-class period, I have improved immensely in the accuracy of pronunciation. Also, Catherine did post-course assessments to measure the improvements.
I strongly recommend Catherine’s course to anyone who is not a native English speaker and wants to improve your conversational speaking significantly.