As you can see the pictures above,1. First of all, I ordered Apple macbook pro 15.4 2018, but I received Apple macbook pro 15.4 2016 though it is in good condition and work well. So I don't know whether it was a deception plan or what!.2. When I look in software update,  it states 15 inch but when I click software report it shows 13.3 inch specification. So also I don't which is true between 15 inch or 13.3 inch3. When charging this laptop, the charger undergo gain much heat in a such way I don't to continue charging and sometimes deciding to unplug the charger for a while and then plug again to resume the charging.Having saying that, the computer works well for the time when I used to do my work. Great machine but it is not what I want according to the specifications I have requested.