I had a ton of fun playing with SoundStage: http://www.soundstagevr.com/ http://www.soundstagevr.com/ It's far from "full-featured, professional-quality", but

I had a ton of fun playing with SoundStage: http://www.soundstagevr.com/ http://www.soundstagevr.com/ It's far from "full-featured, professional-quality", but it completely sold me on the viability of VR as a medium for audio production.