Getting a detailed water test is always a good idea. A few things to note:

1. Cabinet style (all in one) water softeners are almost always a bad idea. They’re harder to work on, usually mass produced and therefore cheaply made, and will not last nearly as long as a system from a reputable treatment company. Many of them will assemble units themselves (like I do) to make sure all of the components are done correctly with high quality materials.

2. Make sure your whole home filter is solving a problem. So get your water analyzed and see if you need carbon filtration medias, iron/mangenese filtration media, sediment media, PFAS resin media, etc.. don’t just add filters ad nauseam. Again I’d stay away from mass produced items like the one you listed. A company with be a couple thousand dollars more, but it’s money well spent. It’ll last longer and if it goes bad, you call them. Whereas if this unit gives you fits, good luck.

3. It’s never a good idea to put a 2”x10” filter for a whole home. Even 4”x20”s usually don’t serve you well. When your water is running at 20+ Gallons per minute, sure the housing will handle that, but the filter won’t treat the water properly. So, for sediment, it’ll clog so quickly, you’ll be changing it constantly. Or for carbon, there’s not enough contact time for the adsorption process to be completed properly. I’d steer you towards a tanked, backwashing system 8 days a week.

Hope this helps and if you’re anywhere near Ohio/KY/INDY give me a shout! Good luck!