[j_bum]

Did you use it in a goal oriented way or just for fun?

I’m hoping to solidifying some previously learned ML maths skills (mostly LA & calc), but also want to expand my stats knowledge. I’m thinking of trying it to see if it piques enough of a passion to shift into a more ML oriented role.

[sandspar]

I did it for several months for fun and enjoyed it.

They use a placement test to figure out where you'll start. They offer a college level statistics course. And you're in luck: their marquee course focuses on ML math.