So is it any good? Recommended for someone at my level to improve at the game?
Is this book good for my level?
No, it is not worth buying and studying.
There are many more useful books to buy and study.
https://rafaelleitao.com/chess-books-grandmaster/

Good Chess Books for Beginners and Beyond...
https://www.chess.com/blog/RussBell/good-chess-books-for-beginners-and-beyond
I came across this book and wondered if it's good in terms of learning openings and worth buying? I'm not much of an advanced player but I'm no complete beginner either.