it depends on your math skills.
spritezhang murdered QR and didn't really need it. He just knows it. The Chinese drilled it into him. He helps the continue the asian math wiz stereotype. 😀
It's an extra 50 bucks for 11 tests. which is about 4.50 per test.
I'm not as fast as I used to be with math. No longer fitting the stereotype. Probably a product of not having to do any math since high school. So I could use hte practice. Plus I can easily blow 50 bucks on worthless stuff. 50 bucks to try and get a high QR score is definitely worth it even if its 1 point.