looking to replace an old Technetic 1000 water softener

Was sold on this years ago (mid 1990s) and it is still running but the local water company is no longer "officially certified" to work on it. I understand this unit had some special technology/patents at the time (proportional brining?). I found R & M manufacturing in Utah that still manufacters what appears to be an upgraded version but there at no distributors out here in NJ.

Is the Avantapure equivalent in that it offers all the same technology as the old Technetic 1000 and more?

I have city water so beyond hardness the only other issue is an occasional chlorine smell.

I like other water conditioners like Kinetico but the cost is well outside my budget. After discussing conditioners with many local companies that offer this service, it seems the prevailing wisdom is to buy a no-name/nondescript unit that has readily available parts (Fleck/Autotrol,etc.) which any company can get and work on and which is fairly cheap (and which will have parts that are available many years to come).

I have not been impressed by the softeners at Home Depot/Lowes/or Sears.
I tend to only look at conditioners that local established companies (in business in the area for > 10 years) sell and service. I have seen a few Eco Water and GE units and them some non-descript rental units.

Can anyone provide some insight into Technetic 1000 vs Avantapure?