Let me, first of all, begin by expressing my utmost appreciation to your entire team for such a wonderful display of very useful materials, as well as point by point explanations with details and extra resources. So far everything covered has been absolutely helpful, I couldn't have asked for more. The clarity in instructions, examples, illustrations, assessments, and feedback is simply fantastic.
Personally, getting to know that some of the things I'm already practicing are actually correct, gives me such encouragement and zeal to do more, and more importantly, the awareness on a range of mistakes has prompted me to sit up, get more serious with consistent speaking, thereby improve my fluency. Kindly keep it up, your standards I believe and can unequivocally state that are super and top class. Thank you very much!