Needed more storage for my laptop and needed a new battery for my phone.
The repairs went smoothly, but as per usual, iFixit's guides always have more steps than necessary.
Once my Superdrive was out, my primary SSD has been WAY faster. AWESOME.
iPhone battery replacement - you do not need to remove the front display assembly.
Mac mini mid-2011 hard drive replacement - you do not need to remove the logic board. Once you have the fan, cowling, and antenna plate out, you can swap the drive. You DO NOT need to remove the whole logic board.