mm⦠honestly i dunno; just depends on what you want / needā¦
personally i find a lot of use out of the individual ozone modules as mix elements and not necessrily end-of-chain mastering. [*] bread-and-butter EQ/dynamics modules. (the filter module in trash2 is also deceptively useful; it has quite a few filter models tucked in there.)
the āvintageā modules in ozone standard/advanced are nice; personally i value the ozone stuff more for transparency and surgical processing, more than for coloration; but YMMV.
iām also not a professional engineer and donāt find much value in workflow/efficiency-enhancing features per se. (like: extra presets, āmix targetā and āassistantā kind of things; neutronās track control stuff - itās technically cool but doesnāt really impact me.)
and of course it depends on your budget for things like this. (IIRC i got the mix production suite in an extremely generous sale, so you may just want to wait for one of those.)
anyways, my advice would be to make use of the trial period to see what features you gravitate to. sorry thatās not particularly insightful.
[*] re: mastering in general, i will definitely use ozone for end-of-chain on little self-releases, videos, whatever, as a final step in media preparation for general purposes.
but i always hire a mastering engineer for actual album releases of music. a good mastering engineer brings much more than technical capabilities; the step of exposing the work to another set of ears is equally valuable.