I apologize as I should have provided a bit more detail in my response.
I struggled with my salt system at first, but since changing my water it has worked as advertised. My assumption for my struggles is that the top had residual water that sat in the pump housings for who knows how long until I put the tub into use. I was constantly adding chlorine and shock - basically daily and could never seem to get clear water. I had read comments that after the first water change water care seems to be much easier. For me this has definitely been 100% true.
My water has since been clean and clear for over 2 months by simply keeping my alkalinity and ph in check (which I was constantly battling previously along with chlorine issues) and I add shock about once a week. I haven't once had to add chlorine granules. I added 3 oz of phosphate remover when I changed my water (per dealer instruction) and I've had zero phosphates in subsequent tests. My water is a bit in the hard side but haven't had to use the Vanishing Act pillow yet.
Pros of the salt system now that it is working as I anticipated are the ease of maintenance and not having to add chlorine. I've read people with non-salt systems putting in 5 tablespoons of chlorine after each use. That seems outrageously high to me.
With ozone you'll still have to add chlorine after each use or use a floater.
My other HS spa is older and the ozone system went out. I didn't bother replacing it. I use phosphate remover on start up, I use Spa Marvel, and a bromine floater. All I have to do is adjust ph and alkalinity about once a week. Its so easy I almost thought of changing my salt system over to that until I got things dialed with the salt system.
I'd recommend bringing your water in to your dealer for testing if you haven't already done so. They'd be able to tell you if your water is ultimately going to cause issues with the salt system. If it is going to be a struggle then you'll know your answer. The titanium sticks run about $300 after tax for a 3 pack. A 3 pack "should" last a year. If the dealer thinks the your water is too harsh and will burn through them quicker that will help guide your decision as well.
I will say I much enjoy the lack of smell and the feeling of the water in my salt tub compared to my friends non-salt tubs. After I got it dialed in it seems to work as advertised.