Excerpt: I had coveted the 5d3 since it's announcement date, and the 5d2 long before that. After "settling" for almost 2 years with my t4i I decided that my bank account was big enough where it was time to upgrade. Upon getting it I immediately liked the improved heavy feel and larger grip for my hands.
Pros: Fast / Accurate Auto-Focus, Good Image Quality
Conclusion: I bought my EOS 5d mark iii because my wife has a 6d and I was jealous ! I love the really nice ergonomics. All the buttons and commands are very naturally situated on the body. And I really love the silent mode. I mean the silent mode is just extraordinary.
Excerpt: Being the owner of a 5D the mkIII for well over a year, I have fired 27,000 frames with it. It works pretty well in connection with my corporate bespoke photo library work (all of which is on client locations), being a significant improvement over the mkII.
Pros: Easy To Use, Fast / Accurate Auto-Focus, Large Clear LCD