would you pick the Jacuzzi brand just for the health benefits of the True Water System and minimizing exposure to chemicals? Trying to decide between Jacuzzi, Sundance, CalSpa, and Nordic brands

I have seen the Sundance and Jacuzzi brand spas in person and I like the idea of having a low chemical footprint (but not sure how I feel about salt ether). So the true water system that Jacuzzi offered appealed to me (I understand it would be good to use with frog ease on low). I have not seen the CalSpa, or Nordic brands in person yet, but the dealer who is selling Jacuzzi is close and has a much lower price compared to Sundance so my impulsive side was leaning that way, but figured I would post here to see if CalSpa or Nordic brands have any benefits over the others?

Opinions are welcomed!