IMO, it's not worth the it. I injected ozone into my skimmer for about 6 months, yes it makes the water a little clearer, but so does carbon, yes it does change a skimmers effectiveness (not sure if the change is good or bad). There are definitely pros and cons to ozone. In my setup it was just another piece of equipment that I had to maintain and I did not see any huge benefit from it. However there are others that use it and love it.
If you are interested I do have a complete setup with a red sea ozonator 400 I believe (it's the big one) with 2 dryers and an air pump.