As usual with these things: it is impressive that stuff like this can be generated so quickly at all, but the content is very superficial and often wrong or at least misleading. It's unusable for learning, but great for spamming platforms, just like NotebookLM for instance.

As an example, I asked about the Cantor function. It generated a 1:24 video, which is laughably short, explained correctly how the Cantor set is defined but showed a flawed visual representation, then simply skipped over how the Cantor function is constructed and simply states the basic properties. Sorry, but this is garbage content.