You didn't specify the model number, capacity or vendor as no SoftPro website was shown.
Some SoftPro units listed on Amazon, are shown with Fleck 5600SXT control valves. There is another model which is indicated as an upflow regeneration model, which appears to use an unbranded control valve, likely produced offshore. It also specifies it features variable brining.
Some of the sales claims are marketing hype, especially with small, residential softeners. If you perform a forum search for Upflow regeneration, you will likely find numerous that discuss the pros and cons, with downflow most often recommended for residential applications. There are similar threads which discuss variable brining.
The control valve brands commonly recommended on this forum are Fleck, Clack and for some applications, Autotrol.