I didn't rush to make a review of this camera, as I wanted to really put it through it's paces first. I won't try to list every feature or go over every bullet point (the above description does a fine job), but instead try to go over a few things which make a big difference to me as a 5D Mark II owner. For some background, I bought an original 5D in 2007, a 5DII in 2008 and have been working with these bodies ever since then. I also have experience with all of the Canon 1-series up through the 1DIII and 1DsIII. I currently log about 60,000 photos per year with the 5D Mark IIs as a professional wedding and portrait photographer. I shoot almost exclusively with fast L prime lenses in my work.
So after a week of solid shooting with the camera, here are the areas which are of note relative to previous 5D bodies: