Description: The P2K is an evolutionary version of the original P2, and focuses on offering the most important performance features of the P2 at a more affordable price. Available in 650c and 700c. Weight: 3.1lb. (55cm). UCI and ITU legal.
I have never felt very good on a bike. I switched for a 26" Cannondale a few years ago, for a more aero position, but never felt really satisfied, except by the seat tube angle. I then found a Cervelo bike. The first one was the Eyre, then the P2 and now the P2K (and the P3 for a few months). The first 2 models were great but with a 78 seat tube angle. Too radical for me.
Then came the P2K and an improved position that helps me so much in downhills, and allows more power output while climbing thanks to the less radical seat tube ange. Now I feel aero (and the bike is!) and so much comfortable. And my ride times have improved much. 
I got this bike a few weeks before IM-USA and was really worried about the ride, considering I was coming off a Softride Road Rocket. My fears were unfounded. Although I didn't set any records on the bike course, it was more due to the engine (me) than the bike. It is stiff, responsive, and light. I can't think of any real negative aspects of the bike, except for the chipping paint. Other than that small blemish, can't think of anything else. Price is excellent and customer service second to none.