Water Filtration System

[AntM1564]

I would love to add a water filtration system to my kitchen. I have a spray faucet, so I cannot add one of those filters that screw on the water spout. I was looking into under the sink water filtration systems. Does anyone have an experience with particular system? I've looked at reviews online and various websites, but I cannot find a consensus on one to purchase.

The one common thing I am seeing is the Waterdrop brand seems to get high praise - Invalid Link Removed

 

[Datsun280z]

My parents have a “us pure water Corp” 4 stage system under sink. They have had it for at least 20 years without an issue.
A quick search and I found this site appears more updated than theirs but I think these are the system

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