5 - 30 minuten
upgrading from original 500 GB hard drive to 1 TB on my five year old 2010 MacBook Pro
It was a piece of cake. I followed the ifixit guide, though I skipped the part about removing the battery first because it wasn't in the way. I'm guessing that was just a safety precaution anyway. All went smoothly.
Before the repair, I placed the new hard drive into the USB enclosure that came with the kit and used Disk Utility to restore the contents of the old disk (the one at that point still in the MacBook Pro) onto the new one from the backup I had created on an external drive using Silverkeeper. Then I carried out the replacement but discovered when it would not start up from the new internal hard drive that I had neglected to reformat the new drive as a Mac drive (Mac OS extended journaled with Partition Map Scheme: GUID Partition Table) beforehand. So be sure to first reformat the disk before using Disk Utility to carry out the restore procedure copying over your data from the old disk to the new one.