1. The whining noise: Some people can stand it, others can't. I am one of those that can't stand it and can hear it clearly. 2. Airport Extreme: The computer fails to join my preferred networks even though I have it set up to do so. I have to manually click my network everytime I log-in. 3. Short Battery Life: I'm getting only a little over 2 hours with better battery life settings and a half lit display... About the same life as the powerbook my @$$! 2 hours is terrible if you ask me. No wonder Apple did not rate the battery life on the site. It would definitely steer some customers away. 4. Heat: The MBP gets extremely hot, even if not running games or movies. The extreme temperature areas are right above the keyboard, the bottom of the laptop, and the top of the speaker grills. For a $2,700 laptop (after tax in CA), you'd expect a lot more.