Like my 2011 MACBK PRO THIS UNIT OVER HEATS AND IT IS WORRYSOME FOR ME AS IT ALSO HAS AN AMD DISCRETE GPU. AFTER ALL THESE YEARS APPLE SHOULD HAVE GOTTEN A HANDLE ON COOLING.I AM CONCERNED ABOUT EDITING AS IT GETS TOO HOT JUST CHECKING MAIL AND NORMAL USE.OVERALL ITS STILL BETTER THAN BEING STUCK WITH USING A PC.