First and last time I buy refurbed product not from the manufacturer. The unit is cosmetically very good. It boots up and works. HOWEVER, when it boots up it shows a drive error and then crashes randomly after 2-3 hours. I am going to have to take it in for service to get it fixed. Ultimately did not save a damn thing over going to Apple direct.It is on me that I did not get this replaced in 90 days and tried to fix it via software. This POS cane to me with a defective hard drive. I have now replaced it at a cost of $325. The original purchase plus this cost....just go by a new one and save yourself the hassle.