Is Mastering Haskell Programming worth it?

I'm usually skeptical of MOOCs, specially paid ones. I'm curious about this specific one in Udemy that's available at a discount today.

https://www.udemy.com/mastering-haskell-programming/

It seems to contain content that's intermediate enough that's not part of your usual *ahem* category theory tutorial that's so commonly used when trying to learn Haskell, yet it covers general concepts rather than frameworks. If there is a similar resource that's equally as good, maybe like the one in RW Haskell, I'd take it instead.

NOTE: I'm in no way associated with any of the parties involved, personally dislike Packt too.