If you want actual useful advice you need to provide more information.
What is your water source/supply? Municipal? Rural Water district? Private - Shallow well? Deep well? If a well is it protected from surface water/runoff? Stream? Pond? ???
Why was your existing treatment system installed? Did you really need a water softener or did you run into a good salesman?
Why do you want an upgrade?
What is it about your water that you don't like?
When is the last time you had you water supply tested? Who did it? What did they test for? Results?
Take a look at this site for some info:
Virginia household water programIf you really need a water softener you may be disappointed with a salt-free water conditioner - they are not as effective for high hardness, and work very differently.
I move into a new house about a year and a half ago. Private well, drilled, about 25 yrs old, don't know how deep and don't have drill logs. Obvious signs of hardness and minerals in house, obvious sulfur odor. House had a cartridge filter and water softener, but previous owners were bypassing the softener! I had it tested for just about everything except radon. Have high calcium and manganese hardness and hydrogen sulfide in the water. Ended getting the softing system rebuilt, adding a hydrogen sulfide removal system (hydrogen peroxide injection/contact tank/catalyzed carbon adsorption), and adding a UV lamp disinfection stage. Wasn't cheap, but I'm happy with the results - and I used to work in environmental engineering/public health/water supply fields, so chose to go fairly aggressive on protecting my own water!