Though there are many other Amazon courses out there, their previous edition - AmaSuite3 is what helped me make my first $100 and eventually scaled to $600 on Amazon.
Besides the usual video tutorials, they have 3 powerful software as in Azon Keyword Tool, Top 100 Analyzer and Product Inspector.
The last 2 are very powerful as they spelt out what sells best on Amazon right now and how much commissions can you potentially make if you promote.
In AmaSuite4, they have the 4th tool called Amazon Best Sellers which is designed for those wanting to sell their own products on Amazon.
This is based on what Chris learns from Matt Clark in last year's Amazon Selling Machine course.
In short, Chris and Dave are the REAL deal.