They also provide a free 1 year educational license for all of their products to students.
As well as discounts if you're a student. IIRC I paid like 25$/year when I was still a student. Easy money to pay with such an awesome product!
Is there any difference in the code completion for the professional and the community edition. I tried out both and it seemed like some of the code completions only work with the professional edition. Just want to know if this is a bug or a feature :)