Yes it works.
I've been using an Emagin Z800 for the last 5 years with AH... stereoscopic 3D and head tracking. It died a month or two ago and I've been looking at alternatives, the Vuzix VR-1200 will probably be what I get (US$599 with 6DoF tracking).
Only issue I had were the gunsight was off, but this was due to a dominant left eye... so it reflected a real world issue I do have.
3D adds a lot to AH, its much easier to understand energy states, you get a better feel in knife fights as to whats going on.
I've had significant trouble getting used to 2D flying with no head tracking without my headset (which is why I mostly tank these days, until I get my VR-1200).