The price point has nothing whatever to do with having the gun "work flawlessly with anything you put in it".
It seems to be difficult for some people to understand that when you go that small with a high-pressured round like a 9mm, certain things have to give.
It does not have room internally for gunk to accumulate, that's a function of its size. Keep it clean, it's not a battle weapon.
It does not have a slide lock, again to retain smaller dimensions.
It has a heel clip mag release, again to keep dimensions compact, and because it wasn't intended to be an extended combat type of pistol with multiple reloads.
Materials were chosen for their individual characteristics to achieve Rohrbaugh's goals in the pistol's intended purpose. They were not chosen because they were cheap to work with, as materials in other designs were.
Slide mass & travel, along with spring size & energy, combined with the frame dimensions, do not allow the pistol to function with "everything" you may want to try to run through it. Again- the small size means compromise in ammo selection. Use what it was designed around, keep it clean, replace the spring as needed, and it'll run fine.
Comparing it to a Kel-Tec is invalid.
The Kel-Tec is not the same size & is not built as well.
You can't just hold up two "smallish" pistols side by side & declare the cheapest one a better buy because it's cheaper. It's the size & quality of the Rohrbaugh that make it what it is AS A PACKAGE.
If you don't grasp the concept, don't spend the money.
Denis