The best feature of Advanced is that you can use each of Ozone's processors as separate plugins. This could have been a selling point for me, as I often use Ozone on individual tracks just for its exciter or just for its limiter or just for its multiband compressor. Had this been a feature of the
standard edition, I'd have bought the upgrade.
But since separate DLLs was not an option in the standard edition, the only potential selling point there was the new auto-release algorithm. But when I demoed it, I could not discern much difference between it and the existing Intelligent II algorithm, and the CPU hit was huge. So I passed on the upgrade altogether. Ozone 4 still does what I want and does it really, really well.