I have attended 5 vocal theraphy session with Dr. Karen Sussman and it was definitely a big impact of my vocal and a behaviour change. Karen is a amazing and if you follow her instructions and practice at home or any where you go and you will see a change and improvement of your voice. I highly recommend Karen if you are suffering from vocal speech, throat pain, shortage of breathe or dry cough her natural techniques works and very affective. She is great!