Margarita Zakharova completed this course, spending 3 hours a week on it and found the course difficulty to be easy.
This course is incredibly useful for anyone who has attempted writing scientific paper or yet to do so. The teacher delivers very fresh and rational view on how to write sharp and clear. It helped me a lot in my professional career. I was actually writing a paper while taking this course, and I could implement everything the teacher was saying right away. Everyone related to science will benefit from this course, even the experienced professors and scientists.