This Macbook worked fine for me, especially after the condition it was shipped to me in.The 4 stars is for the actual MacBook, not the seller. Laptop worked great and was quite nice.About the SELLER: The laptop was packaged very poorly and the laptop was slightly beat up (not from shipping, but being refurbished, which I did not mind). However, I got the wrong version! Two version behind this. Many other reviewers say the same thing. Please, before you add to cart, look at the seller ratings because it's not Amazon as the seller.