A decent amount. I wanted to generate some new Armorer lines for a Mandalorian edit I’m doing for myself and I found putting “I said slowly and deliberately” got me much closer to the delivery that I wanted most of the time. Without it the lines were delivered WAY too quickly. I allowed me to focus each generation on getting the delivery I wanted without getting hung up on the speed.
But I would say using that will get you closer to what you’re aiming for much quicker than just randomly generating and hoping for the best.