You should definitely check it out. If you already know Haskell and you love algorithms, that book will probably be more interesting than the Intro to Haskell book.
Yup. A comment on the original webpage reported that this value appears to hang/time-out Google Spreadsheet. I tested and it indeed was the case. So there are going to be lots of places one can fool around on the input side only to send the server thread into a loop. That's bad.
You should definitely check it out. If you already know Haskell and you love algorithms, that book will probably be more interesting than the Intro to Haskell book.
Also check out Okasaki's book of functional data structures: http://www.amazon.com/Purely-Functional-Structures-Chris-Oka...