John Deer says that while the class is done using Hatch only, the principles you learn can be transferred to your software.
The class sessions will be available for you to view free for one week after class ends. If you want to watch unlimited replays, you can pay an additional $16.95 and add that option on. Also: there is an extra 1.5 hours of video lessons that every participant gets.
Given that, in this situation (and at this price), depending on how comfortable you are with your StitchArtist, you might try taking the class even if you're not going to use Hatch. Just know that the class is going to be ALL Hatch instruction; no one is going to be able to help you in class to find the tools you are wanting to use.