I am using the Cozy Grammar Course with my six year old son. My first language is Chinese, and I have always spoken to my son in Chinese so that he will keep it up. The problem is that he is now ready to start first grade, and he needs to focus on his English. I bought the Cozy Grammar to help him with this, and I am so happy I did. It has been helping both of us with our pronunciation because the teacher speaks so clearly and enunciates everything carefully. My son has also been picking up some of the grammar, which I hadn’t expected. It is helping my writing skills also. I LOVE THIS PRODUCT!