Maybe I just got unlucky, but the laptop I received never really worked.  When going through the setup process, the computer was unable to load data from my Time Machine backup.  I cancelled out of it in an attempt to complete the rest of the installation process.  I had to shutdown and after that,  the machine never worked again.  During the boot phase it just cycled through the Apple logo/progress bar startup over and over and over again.  It would almost reach the end and then stop and restart, but never fully booted.  I returned it, but since it was processed through a third party, I had to pay a 15% restocking fee, so I only received 85% of what I initially paid.  So I had to pay almost $400 for the pleasure of owning a broken Mac for a day.  What a joy!  I complained to the 3rd party and they said the laptop was fine which is baffling since I watched the machine try and boot for half and hour.  I feel screwed.  Maybe I just got a bad product, or maybe Apple has serious quality control issues.  It's seriously making me think of giving up on Macs all together.