Private training is tailored specifically to you. You can ask me questions about specific Scrivener features, get a detailed overview of the software, have me help you compile your manuscript, or get feedback on the best features to use for your process. Basically, it’s a Scrivener AMA (ask me anything).
The online courses provide instruction via written lessons and videos that cover Scrivener’s features in a logical progression and in detail. You can skip around to meet your needs, and post questions, but my response is not immediate.