No opinions on those 3d headphones?
I'd say they will probably be a waste for VR. The headsets are already tracking your head position relative to the source of the audio and apply HRTFs to make sounds more realistic. Headphones with multiple small drivers are almost always inferior to ones with a single large driver per ear.
For vive, I actually don't mind the earbuds and they are extremely convenient if you route them like this:
http://i.imgur.com/bvo9U5O.jpg