Mac mini Mid 2012 Repairability: 8 out of 10 (10 is easiest to repair).

No proprietary screws are found within the device.

You can easily upgrade your RAM and hard drive, as well as add a secondary drive.

There's no glue anywhere inside that needs to be removed while disassembling the mini.

The CPU is soldered to the logic board and not user-upgradeable.

While not difficult to do, you still have to remove almost all the internals in order to replace the power supply.