I recently added a Sony PMW-300K to my family. Given the successful adoption of the Sony EX3 and the XDCAM EX workflow among so many production companies, I felt that the 300 is a logical investment.
The camera shoots on the tried and trusted 35mb/s EX format on SxS cards or SD cards. The real plus side to this camera is that it can also shoot 50mb/s 422 footage. This codec is much more robust. The higher data rate and 422 color space has proven to be a winner when it comes to green screen productions. Clients are raving about how well they can pull a key from this footage.
Although it seems that large sensor cinema style cameras are driving the video production industry, there is still a place for "regular" video cameras. The ability to shoot an entire project on one lens and not have to kit out a camera makes a lot of sense for "run and gun" shoots, or corporate videos where sometimes less gear is better.
The images just scream from this camera. Every time I hook it up to a monitor, I am blown away. Footage will be coming soon.