I agree re: marketing -- something I had easily fell for. One of the authors has moved onto writing another Haskell book (a "work of art" apparently), but this time my interest, for an intermediate level book, is elsewhere: https://intermediatehaskell.com/ (which would be more informative--thus pedagogically sound--than a work of art).
Lesson learned: don't fall for the marketing of art.
Generally the best way to learn is by actually doing projects: http://www.haskellforall.com/2017/10/advice-for-haskell-begi...
LYAH may not be the greatest Haskell tutorial. But it makes an easy read. That means, you are not afraid to go back to it again and again, Which is the crucial aspect of learning anything sufficiently complex or new or both..