I'm not local. But I have run ozone for years. It polishes the water like the clarity you had in the first week of filling the tank.
But, you should run the water through carbon to strip the o3 ions out of the water stream post ozone input. Also, if the ozone bleeding into the air via the vent of the skimmer is high you can have a build up of it that will burn lung tissue. It's an oxidizer so making sure it's not left unvented or not removed/being stripped off via carbon on the air side can be an issue. I've never had a problem and I love the yellow being taken out of the water. Also, the redox potential is raised and with a controller for that parameter you can set it to the 375/435 range that is found in the ocean.
When used properly it's the cat's meow. Some folks are afraid of it and or have ran great systems without so alot call it old school and don't bother.