The course offers practical information which one can put to use, for example most books will tell you what formalities are to be completed for partnership registration but no one tells you where to go to register the partnership. This course even provides addresses of offices in various cities where you can get the partnership registered. There are several other pieces of real practical information available throughout the course. This makes it an outstanding course from a practical sense. Since I am doing my CS, I have already learnt drafting, still while I was going through the drafting module of the diploma course; I got to know several points which were not taught in CS course. I learnt a great deal of drafting from this course and this way it helped me with my CS preparation also.
I personally liked the modules on Tax and Accounting and Company Law. During my CS Executive exam, there was a question about Minimum Alternative Tax and I could answer that question effectively because I had studied about it in the diploma course. This concept is not explained very well in the CS course module and most of my friends had a hard time answering that question.