I don't mean to sound cheap but is there like a sample thing where we can do one one or two questions to see if we like the system? Or at least watch a video showing how it works?
I'll raise the idea of a sample, but I guess we thought the free content series would act be indicative of quality. The same people in those videos write and present the practice questions and solutions.
The video in the OP is a precise representation of the system. You see a series of vertical multi-choice practice questions, answer as little or as many as you want then click "submit". It will then tell you which you got right or wrong, and you'll be able to click a button that sees "see video solution" to be taken to something similar to the video.
The Section Zero system is exactly the same as the vTextbook practice system if I recall correctly.
Also chasej I know you're doing 12AM and might be interested -- so all of the text response videos are similar to the general content videos for the other subjects, explaining particular topics (structure analysis, mccarthyism, symbols, etc etc). The English text-specific premium content isn't in the form of multi-choice questions for obvious reasons.