A massive jump from the standard core library.
: If you already own Omnisphere 1 or Atmosphere, you can purchase an upgrade to the latest version. Spectrasonics Expansion Bundles (Third-Party) Spectrasonics Omnisphere 2 Complete Pack Download
If you have typed that phrase into Google, you are likely a producer who wants this $479 plugin but doesn’t have the budget. You want the 60+ GB of sounds, the 14,000+ patches, and the legendary "Steam" engine for free. A massive jump from the standard core library