How to get ETH on arb?

Can you explain the process of acquiring Ethereum (ETH) on an arbitrage platform, or 'arb' as it's commonly known? I'm particularly interested in understanding the steps involved from start to finish, including any potential risks or considerations I should be aware of. Is there a specific platform you recommend for beginners looking to get into the world of crypto arbitrage? Additionally, what are the benefits and drawbacks of using an arb platform compared to traditional methods of acquiring ETH?