Is it worth it?
I haven’t, but there is no secret approach. If you are uneducated about college costs, the FA process, FAFSA and CSS, merit vs grant, stacking vs no stacking, etc, you need to educate yourself. It does not take a course, but you can take that approach if it that is a better fit for you. But, once you understand the process, there is only one way to reduce costs and that is to pick the schools applied to wisely.
I give college app talks and when it comes to cost, first and foremost, I recommend establishing a college budget before your student submits a single application.
The next step is understanding how college costs work. That requires working through net price calculations to know your expected familial contribution. You need to understand what is meant by the following terms: FAFSA, CSS, EFC, grants, scholarships, stacking vs not stacking, need-based aid vs. merit aid, need-met (according to school definition, not yours), Pell (if applicable), etc.
Once you establish budget and understand real costs, then work with your student to create a realistic list of colleges based on your budget and their profile (test scores, course rigor, GPA, and accomplishments/ECs).
For example, we cannot come close to paying our expected familial contribution. Applying to 100% meets-need schools that don’t offer merit would be a complete waste of time and money for our kids bc they will be way beyond what our kids can afford.
For my kids who have high profile accomplishments, investigating competitive scholarships at schools meant findi g programs that brought costs down to our affordable range.
For my less accomplished kids, it has meant finding lower cost schools and programs or living at home and commuting.
The more you educate yourself about the process and the more you research schools, the more likely you are to have outcomes that fit your family.
How much does th course cost?
Maybe read the book “Paying for College Without Going Broke”…first.
That book and this forum were my most useful tools when I went through this.
Already order 2018 Paying for College Without Going Broke which will be released on Sept 19.
Course cost is $399. the last class had over 1300 people.
Wowser. I wouldn’t spend that much $$ on something I can easily learn myself if I put enough effort into it. Spend a few hours reading these forums, ask specific questions, and you should be able to learn all you really need to know.
Learn how to read institutions’ common data sets. www.collegedata.com is an easy tool for a brief overview of individual schools. But then go to their IPEDs data and dig deeper. https://nces.ed.gov/ipeds/datacenter/InstitutionByName.aspx You can also access the info by googling a school’s name and common data set. (Here is a sample of the type of info you can easily see on a school http://www.collegedata.com/cs/data/college/college_pg03_tmpl.jhtml?schoolId=1093 )
One major hint: be willing to be very critical in regards to your own student’s accomplishments. One of the biggest traps to fall into is the idea that compared to the kids at your student’s school or that your student knows, your child is highly competitive. College applications are national/international. That is the benchmark your student has to hit. If your student is applying for competitive scholarships, research the profiles of past winners, etc.
You might find this PP helpful: http://www.manhassetsca.org/HighSchool/articles2010-11/DonBettertonpresentation2011.05.17.pdf There are lots of videos out there on youtube about admissions as well. I personally would explore free 1st. 
I’ve been haunting this place for over a year now and I think i know everything that course could teach me. I might not be able to rattle off hundreds of college names, or know exactly which colleges will fit my kid, but I have been sharply brought back to earth just by reading posts here, and I have no illusions.
I realized I was on top of everything when I went to a college night at D’s school and the counselors didn’t say a thing i didn’t already know.
The common data sets, the various search engines, the College Board, all will give you this information.
But you need to know what to look for. The way to figure that out is to read everything on here. There are a ton of useful threads. And they’re free.
(You can send me half the $399 and I’ll send you links to the best threads. -------- KIDDING!!!)