I have avoided opening a MacBook Pro for as long as possible, but in the end I simply had to. The laptops come with only one year warranty, and 5 out of the 6 machines we have of this model have had some kind of problems within +/- one year. Mine got a new motherboard 9 months after I bought it. On the machine on the picture, the hard drive seemed to have an error that made the machine beep quite frequently:

MacBook Pro

Changing the hard drive  made me and my colleague remove about 20 screws! Why is it that people only talk about looks when they talk about design? And never about how practical the design is? Have a look at your laptop, and ask yourself where your hard drive is located and how many screws you need to remove to replace it? If your laptop is well-designed your answer would be 5-6 screws!