I spent all of last weekend with the Sony FS-700 camera on loan from Video Gear in San Diego. Being their blogger, I also recorded a couple short videos and wrote up a bit on my (short) experiences with the camera. Overall, it's not a bad camera, it's just that the camera falls a bit short of my personal expectations. In the price bracket around the FS-700 (~$8k) I expect to have four times the quality of a Canon DSLR and the codec on the FS-700 really limits the camera to about DSLR quality - minus the annoying aliasing...most of the time. The FS-700 might kick some serious boo-tay once the 4k upgrade is available, depending on the price of the recorder options.
You can read about my experiences here and here. Also, here are two short videos I created as examples of the output from the camera.