You claim to have two years of experience. If you look at the course outline there is nothing you can't learn on your own. Sure, it is not specific, but the tangents you will take on your own will give you much more breadth about the subject.
The biggest advantage of the course is they trimmed the fat for you, and studying on your own might take you longer. If you are short on time, it might be useful.
The other aspect is the networking. That is always extremely hard to judge. Most of the time it is useless. However, if you are looking for someone whose profile fits with the type of person that would take this course, then you are more likely to get value out of this.
Professors are usually easy to reach for questions, and it is easy to find communities of people you can explore the subject with.
Save the bucks.
NB: Just my opinion. I did not take the course. I shortly considered to take it, but decided not to.