How private is CoinJoin?

How private do you think CoinJoin truly is? Considering the fact that it combines multiple transactions into a single one to obscure the origins and destinations of funds, it certainly adds an additional layer of anonymity. But is it truly impenetrable? Could advanced tracking techniques still potentially unravel the veil of privacy CoinJoin offers? And how does it compare to other privacy-focused cryptocurrencies or techniques in the market? I'm curious to hear your thoughts on this matter.