So, I've had my D800 since late May. Was away for few months so couldn't really deal with testing and addressing the focusing issue. Once I got home (Canada) I tested the camera with my 50mm 1.8 and saw that I've got the issue.
Contacted Vancouver based Nikon service center, sent the camera in. This is when it all started. Nikon recommends (and I wouldn't do it any other way) to insure the shipment. Well, when you buy insurance for $3K it's not only $90 ($3 per $100) but also the shipment has to be packed by shipper personnel, otherwise insurance does not apply. So, $180 later I've sent the camera in. Really upset as I just spend $3K on a camera that should not have such defects and if it does, it is my strong belief, I should not pay a dime for anything to get fixed. Calling Nikon service I was told to email them details to "see if we can do something". Hasn't heard back from them.
Today I got my camera back. Excited and hopeful (against all odds based on some reviews that say that Nikon doesn't really fix the issue but masks it) I tested it all again. Left sensors in Phase Detect are better now, but center is so much off it's not even funny. Right side got worse as well. Then I tried Live View focusing. And guess what - it got worse as well!
But this is not over yet. When putting a lens on (and I'm OCD about my things - keep everything clean, keep all boxes, packaging, keep everything in cloth and protected) I see a lot of dust particles around the mirror AND there is a scratch on the mirror. A long horizontal scratch along the bottom side of the mirror.
I am pissed off beyond belief. I am pissed off at Nikon service center for doing such a #### job, I am extremely aggravated with Nikon itself for being such cheap and lousy business and not doing a right thing to customers. And I am very disappointed. This is way too much money for such a #### experience and product that doesn't function as suppose.
I called the service center and they assured me that they will send me a shipping label to send the camera back to them. Well, I still don't have it (they promised it today). I have a trip coming up in couple of weeks to Asia that I won't be able to repeat for a very long time even if I try hard and I have all these issues. I don't think I will have a good experience if I try to use the camera as is.
To make this all sound even funnier. I have couple of friends who live in the Caribbean. They got their D800s within couple of weeks of it being officially released (I was #1 in my store and had to wait for 2 months). They tested their cameras sometime in July, confirmed the issue and guess what - they were given brand new cameras with apologies from the store they bought the cameras from originally. No questions asked. This is what I call service. And it's not like it's a store that sells a lot of gear who can afford to do something like that.