My wife is pushing for one of these very expensive home water treatment/filtration systems, but it all feels like a scam to me. No one I know has one, so turning to random strangers on the internet for opinions.
Edit: We’re on city water in a decent area. No well water. It’s more about removing the chlorine and microplastics than anything.
Get tests from your water company. Mine sends me yearly tests they do of the water (yes, how truthful are they, whos to know, but I think its a legal requirement to tell you how much aresenic content there is). Ours tests great and our water tatstes great right out of the tap. I would like a softener though for some stuff.