Some stuff will always be finickly and fickle: The more you and the model disagree with what a very basic prompt means the more work it is to get it to do what you want -- and it might not be able to, OTOH poking around will then likely inspire you to do something else that seems possible, AI as a medium is quite a bit more of a dialogue than oil on canvas: Once you've mastered oil it becomes passive, not talking back any more, while AI models will continue to brat back.

That said though ComfyUI gives you a ton more control than A1111, it's also generally faster and more performant.