I've done a few VMware courses online, both by VMware directly and partners. My only beef with a VMware course is the use of LockLizard for the training materials, which is type of DRM software. This requires registering a PC to open the docs in a very limited fashion. I hated it.
The actual class, however, was OK.VCDX #104 (DCV, NV) ஃ WahlNetwork.com ஃ @ChrisWahl ஃ Author, Networking for VMware Administrators
I've delivered quite a few courses online when I worked for a VATC partner, using similar processes/tools to those that VMware use for their "live onlne" deliveries. We still shipped the paper training materials out to folks.
Webex is the main interface for audio, chat/Q&A, viewing the presentations and watching demos done by the instructor. You access the same labs remotely as you would do if you were in a classroom, and if/when you need to work in pairs the instructor creates virtual breakout rooms in Webex so you and your lab partner can talk privately.
The biggest changes are:
1. The different type of interaction you get with the instructor and other students.
2. There can be a delay in getting help from the instructor during labs.