No I haven't used it. I don't like how it's being marketed though. I very much do not trust GPT 4 on the level where I am ready to have it educate the young.
Which essentially means the hallucination problem needs to be solved, which is a ways off.
If the government spent a fraction of the money tech is using to hype up LLMs on compensating teachers, we wouldnt have this mindset. We shouldn't have such thoughts of "we don't expect the most of our techaers" to begin with. Paying teachers more is a lot easier than solving hallucinations (as you probably saw, even Google is needing To manually edit gemini responses. The kings of automation).
The (sad) state of things in the world right now mean teacher will be seeing your kid almost as much as you will. Maybe even more. So we should be more particular in who that person is, and what lessons they bestow on students. You wouldn't let any ol stranger baby sit your kid, so why the same for teachers?
Grants got me through school, so I'm content being taxed up the nose. But I'm an outlier in my tax bracket for that opinion.
But yeah, "individualism culture".