I'm waiting for some real world ISO/image quality tests. If it out performs the 5DmkII in that respect then it's a great buy in my opinion. Because really, the specs read more like an updated version of that camera which makes sense since the 5DmkIII created a large gap in the Canon lineup. The only feature I'm really disappointed about is the lack of 100% viewfinder coverage. But then the 5DmkII didn't have 100% viewfinder coverage either. Other than that the built in wireless and the price makes this a really attractive option for me. I was going for the 5DmkIII after the first of the year, but I'd love to have an extra grand to buy another lens. The ISO performance will be the decision maker for me, since that's my bottom line.