Manual trading gives you full control, while EAs can feel like "set it and forget it" — but it's rarely that simple. Most EAs are based on technical indicators, and if market conditions change (like during high volatility), they can make poor decisions if left unchecked. That’s why even with a profitable EA, I regularly monitor my positions at HFM. It’s also true that if you’re not a coder, tweaking an EA can be tricky.