Totally shattered screen
This job is tedious, especially if your screen has totally sharted itself. One thing that I didn't consider is that if the aluminium is bent (i.e. the iPad has suffered from a decent fall) the new screen may not fit inside it. I couldn't bend it back into shape, but its easily hidden by a case.
You don't really need the iOpener. A hairdryer, guitar pick, and hot pack will do the trick. That being said, support the website that makes this repair possible is always a great idea. Buying the display bezel is also a good idea, it makes removal so much simpler and less stressful.