Experiences with the 6D

What have your experiences been like now that the Canon 6D has been out for a few months? Is it a worthy upgrade?
I am looking to upgrade to FF, but can't justify the price of the Canon 5D3. How does the 6D perform in everyday use? How does the wi-fi perform when tethered to the computer?

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"In the Internet age, the bathroom is now the photography studio.In the film age, the bathroom was the developing lab.