Sony PlayStation 4 Repairability Score: 8 out of 10 (10 is easiest to repair):

No adhesive makes disassembly and reassembly easy.

The non-proprietary hard drive is easy to access and replace, and replacing it will not void your warranty.

Security screws and tamper-evident seals discourage users from disassembling and repairing their PS4.

You'll need to disassemble quite a bit of the device to access the fan for cleaning, and even more for replacement.

The sharp mid-plane could cause some damage to your fingers if you're not careful during disassembly.