I currently have a Late 2012 MacBook Pro (i7) and was offered a 2012 Mac Mini (the highly desired i7)...I have a few questions. 1) I'm interested to know if this is a good trade? I believe the Mac Mini has a more powerful processor than my MBP, can anyone confirm that? What about similar values? 2) Is there any diagnostic software I can run to ensure his is full functional? He has replaced the HDD and I want to ensure it was done properly and there wasn't any damage. 3) Is there a way to check the serial number to make sure it isn't stolen?