Can you explain what you feel is hard about IO in Haskell that isn't hard in other languages? Sure, you need to get used to the different way of working with I

Can you explain what you feel is hard about IO in Haskell that isn't hard in other languages? Sure, you need to get used to the different way of working with IO (remembering to use <- instead let, calling return to wrap the result back into the IO type, etc.), but after some time, it's pretty much automatic.