Even the most magical wonderful auto-hammer is gonna be bad at driving in screws. And, in this analogy I can't fault you because there are people trying to sell this hammer as a screwdriver. My opinion is that it's important to not lose sight of the places where it is useful because of the places where it isn't.

Funny, I grew up using what's called a "hand impact screwdriver"... turns out a hammer can be used to drive in screws!