I’m not sure where to even start with this review. Junk. Being a “renewed” product, you are supposed to expect a blemish or two. This thing had large scratches across the front and back. There were small nicks in the screen, along with a partial imprint of what may have been from a keyboard protector or something. Whatever it was, there was no getting rid of it. Now, on your the worst part....  I started noticing issues with the software. Airplay and screen mirroring would not work. I started reading online about counterfeit units, where processors and other parts are replaced with non Apple units. I looked at the serial number on the back, and it didn’t match the one in the computers “about” area. I looked up both serial numbers on apples website, and the one on the back was for a MacBook with completely different specs....  slower processor speed, core i5 , etc....  so I figured the back was probably replaced from another unit. But the real problem was the serial number in the system. It didn’t register at all on Apples  website, or any other site you can check serial numbers. These MacBooks are not “renewed”. They are pieced together from parts of broken MacBooks, with possibly counterfeit CPU’s. Buyer beware! Also, I have returned the unit, and am still waiting for a refund. They received it 4 days ago. If I go the refurb route again, it will be directly through Apple.UPDATE: Nearly two weeks has gone by now since Amazon received the return. They still have not refunded me. So keep this in mind that if you get a shoddy unit, you may never get your money back if you return it for any reason.