Has anyone downloaded the "FMOD Studio Unity Integration" plugin from there site? And if so any good?
http://www.fmod.org/download/

I've used FMOD extensively from the content implementation side of things, not the programming (interfacing with Unity directly) side of things. But, I have quite a few programmer friends who have used FMOD and Unity. I could certainly ask them.

just getting back into fmod now, big gui update since the last time i used it.

We recently developed a simple prefab for untiy here is the tutorial of how it works.

Hi guys! My amateur team is trying to use the official Fmod Unity plugin to carry out the most basic of basics, but I have no Fmod knowledge, our sound artist who knows Fmod hasn't used Unity, and there's no official documentation yet.

What we have done is to place a FMOD_Listener at camera, and then from our game logic, grab the StudioSystem instance and do fmod.PlayOneShot(). This works for individual sounds. We also get background music by having a Studio Event Emitter at the same camera as the listener that starts playing on awake. But if I do something as simple as placing that same event emitter with the same asset on the player character instead, no sound comes out. I don't know how to stop and switch between sounds (e.g. for the background music). Ideally we'd like to be able to fade between different musics. Any pointers how we should do this? Either the "right way" or a "quick and dirty" way would be fine.