Received mine in only 6 week.. the primary bulk distribution has been done, so the gearing up for preorders is well on it's way (at least by my account)..
It IS worth the wait.... I'm already working to deal with this device with some good friends of mine and the pointer I can give is to "not" use the main OLED panel on front to put on or pull off the unit, it will not strip the gears, but it does them no good.. use the inner portion of the housing to grasp for on and off moments of the Oculus DK2..
Since I do not suffer from vertigo of any kind, the effects are more of a scientific curiosity to myself (I am a technologist and innovator by trade).. It's great for software development (if that is your intentions) but the release model to the public (from what I have researched) will be at a much higher resolution, the system will probably be lighter, and it's obvious the resolution will be much higher then even 1080p of the DK2 ( I think a 2k level would be appropriate for a start, but that's just my POV)
The IR receiver you use does work best with "5 feet", not 2 or right in front of it, because the vector's used for a constant, will cause you to lose tracking (which causes the image to push back showing you breached the invisible wall for tracking)
It works so well, that I was able to literally stand up (since I do not suffer as mentioned from vertigo) and walk behind the chair itself, squat down, and get very. very close to the chair itself, look under the table, walk to the edges of the desk, look over the desk, and even look under the chair itself...
I have to give this a good rating of 25% VR immersion which is a significantly higher value then I would ever give 3D glasses which flatten out, and only have a sense of depth, the physical interactivity of the DK2 is important. it is a true road to VR immersion...
That's my 2 cents anyway..
Buy one..and wait.. the wait is worth it...