What does SaucerSwap do?

So, can you explain in simple terms, just what does SaucerSwap do? I've heard it's a decentralized exchange, but how does it actually work and what sets it apart from other platforms in the crypto space? Is it easy for beginners to use, and what kind of tokens can I trade on SaucerSwap? Also, are there any fees involved, and how does the platform ensure the security of user funds and transactions?