It's a good way to nail down a lot of the fundamentals, on top of which a good CS education can be built. So if you already have a solid CS education it's not

It's a good way to nail down a lot of the fundamentals, on top of which a good CS education can be built. So if you already have a solid CS education it's not really necessary, except maybe for the enjoyment of reading a really well thought through pedagogical work. Which can sometimes help coalesce concepts and the connections between them.