Worth it or not?

So I've uploaded a bunch of different PDFs from a maths class and tried to run a “test” to see how much it could help with simple questions. I’m honestly surprised at how great it has worked.
But since I’m very sceptical, and I sadly did not have enough msg’s to finish my test, I cant say if it’s worth upgrading or continuing to use other AI programs like ChatGPT

So that’s why I’m making this post, for anyone who uses it to weigh in on my decision with a simple answer.