I too dislike cartridges; for the reasons already cited by Ruth and by Bo Bo, but also because the plastic from which they are made is gas-permeable, so they are not viable as a mechanism for hoarding one’s precious ink for the long-term 😢
That said, I do recognise that they undoubtedly have a place.
If one needs the convenience that they offer - e.g. is a school pupil or university student, or on a business trip and so cannot carry/use bottled ink - they are a great invention.
And most cartridge pens can also accept converters for use in situations (at home, or at one’s own desk in one’s office) that suit the use of bottled ink.
But the claim that Cartridge fillers have simplified feeders, with only one channel, to lead the ink to the tip of the nib. There is no need of air inside a cartridge." is not only utter hogwash, it is ‘lazy journalism’ too.
One need only take a brief look at the Parker website. It bruits their pens’ two-channel feed system. All modern Parker pens are cartridge fillers!