Very fast focus, better than my older D100. Quality of display image on the computer is a lot better than my Sony little digital camera even at the same resolution.One thing I really surprised and like, it has perspective control in the program. This is mighty important for architecture photography. You no longer need to buy a more expensive shift lens anymore for taking picture of buildings etc.Only slight complain. Camera of this quality should have a PC sync for studio and product photography use. I was a pro photographer before, this camera is perfect for pro use, I don't want to carry double the weigh, pay double the price for a real pro camera just hoping it will hold up when you drop them. Weight is the most important when you climb up and down. Also, camera out dated as fast as PC computers, why pay thousands for something that if only worth a few hundred three years later? 

Question: How is camera?
Answer: this camera is perfect for pro use