25 years? It doesn't owe you a dime! Unless you've figured out the tricks for cleaning a cartridge with minimal pain you will find yourself cursing the day you got it.

Don't get me wrong: A cartridge system can be very successful. Those who master the cleaning tricks love them. Those who don't, hate them.

It's like eating Maryland steamed spiced crabs. They are an immense amount of work to eat unless someone shows you the trick for eating them. Then they are easy to eat. But the trick is totally NON-intuitive.