Others can talk about ozone.
I have an automatic chlorine system, it uses 3" tablets of trichlor. In our area, this adds so much CYA to the pool that you will be forced to either dump water and refill regularly to control CYA levels or you will have to use liquid chlorine instead. In my pool, for example, one 8 oz tablet of trichlor gives about one day's chlorine consumption and adds 1.4 ppm of CYA. In 2 weeks that gets the CYA from the bottom of the acceptable range of 30 ppm to the top of the range at 50 ppm. Then what? Dump and replace 40% of the pool???? In this drought? No thanks, water bill was $300 last time around, it gets expensive at the higher consumption levels.
Liquid chlorine can be automated or you can use jugs of bleach (I do this). Look in to the automated systems but I doubt any builder is well prepared for that around here. Using bleach means that you must tend to the pool every other day at the outside, daily is much better. So, you must have a pool tending person for vacations.
Personally, if my pool did not have such soft rocks all around, I'd switch to SWG. I think that would let me tend the pool every week instead of every other day but truly, skimmers and water level needs to be checked every other day anyhow. My pool is surrounded with moss rock type boulders as coping (somewhat below the water line) and in the huge waterfall. Let me warn you, they decay pretty easily. And rocks within 6" of the water is a nightmare with calcium stains and algae. I am certain that salt would make the rock decay worse, it is already pretty bad since the sandstone is so soft to begin with. If the sealing had been maintained for the first few years, maybe it would not be so bad now but I have to get the calcium off before I can seal it. I don't know about decking issues with the salt, I'd guess that it matters how much splash you get and whether the decking is washed by sprinklers or manually on occasion.
sorry for my ignorance I have never owned a pool before.