We get terribly hard water from our well.
The trunks of the trees in my yard are rust-colored, our black basalt garden stones now look like fools’ gold, even the lawn has an orange tint at times.
Inside the house we have one of the big Culligan systems and it was a couple grand plus. And we have to keep on top of it, keep it cleaned and so on, but it really has saved us on fixtures, pipes, clothes, etc.
We also have a really good & reliable Culligan store nearby, which helps.
Buy the Culligan and the service plan and be done with the little hassles in life.