This computer has been rebuilt and performs close to the Retina Model. All the items big items on it have been replaced - it has a New Logic Board, A new 500GB SSD, A new battery. Upgraded RAM. The casing is still in very good condition. The Logic Board was replaced by Apple as it was a recall that came with this particular model - the battery was replaced as it slowed down in it's capacity over time. The RAM and SSD was upgraded to optimize performance. Can handle Very High Resolution image processing, Video Editing as well as large design files with ease. A Bargain at the price.