Just my 2 cents here, but I've been using Omnisphere since it was released, and LOVE it. It is a very deep, complicated synth, but can also be used very easily with the ridiculous amounts of presets. I seriously think it would take a lifetime to discover everything it has to offer. Personally, I mostly use it for pads, strings, voices, etc... But, it has amazing leads, bass, and even some sounds that really don't have a category. Like burning piano, flicked glass, light bulbs, etc. Also, if you use Stylus and/or Trilian, it communicates very well with them.
Omnisphere is well worth the pricetag.
