I work in IT Repairs throughout the day. I work on 10+ computers/laptops/tech jobs daily in my workshop, and iFixit comes in clutch for many jobs. Some repairs aren't covered on iFixit, so I will add some guides at some point, hopefully when I have a quieter day at work.
When I'm not in my workshop, I'm in my office at home working on personal projects, typically older Apple devices for my collection, although I do repair some retro games consoles as well.
You can read some of my repair stories on my blog or on my Twitter.