I've built all my PC's after my IBM PC-AT (vintage mid-'80's). My two PC's are holding up so it's been about 6 years since I've built my last PC although I need to go in every so often to poke around. It's not quite the same and the OWC/iFixit videos make it look easy-peasy. I would guess that the other folks who have contributed to this thread also have had experience opening up computers. While we've been successful at replacing the drive, we know how fragile these small components are. In my case, I can also say that one of the connectors to the logic board was different from what was in the videos and the way it came off was not the way I would have expected. In the case of the Mini, people who claim to have worked with computers before have broken the clips that hold the RAM, fer godsakes! - and then they blame Apple for that. So - we're just making our best assessment of the risks and benefits of the different scenarios that your situation presents.