BNB is a great token with its price continuously going up. The main advantage is its use cases in the Binance Ecosystem. As I am a fan of Binance ecosystem and exchange I see real value in the token. On the other hand there is not any value if you are not part of the Binance Ecosystem.
The BNB token could be used for deduction for fees (similar to other exchange tokens) but it is much more. You can use it for launchpad projects to earn free crypto, you can stake him, use it at their DEX exchange as main token for fees and for trading. You are benefited if Binance is making airdrops. Worth to mention that it is woking on its own blockchain so now it is coin (previously using Ethereum).