I should also note that in my case, there was so much broken glass around the bezel that I was concerned about damaging the LCD, so I removed it. It isn't hard to do - there is a wire bracket that must be lifted up gently - it looks like a staple on its side. Once it has been lifted up, it can be used to gently pull out the cable. The cable is also glued down, and must be gently lifted up. I set it aside and got to work on the bezel. I ended up using a heat gun. I was concerned about overheating delicate parts, so I used a piece of cardboard as a heat shield. I used guitar picks but must confess to using a number of tools. Judicious use of a single edged razor blade was helpful, but again, I had spent a lot of time memorizing and marking all the places I could do damage. If you use metal, you have to be very careful. One other thing that was helpful was a piece of plywood between the ipad and the back of my bench - something to push against while scraping away broken glass. Good luck - you may need it.
I successfully performed this repair a couple of days ago. I would agree that it is very difficult. I spent a full hour just going over the instructions and putting tape marks on the ipad - it was very helpful to have a clear mental picture of where all the danger spots are.
In my case, the screen was severely cracked, so the repair did not proceed as pictured. It was basically impossible to get anything but small shards of glass to come up at any given time, so after some releasing, I ended up simply lifting the center part of the screen up off the ipad, leaving cracked glass around the bezel. Knowing where all the internal parts were was essential in this case, since I could have easily damaged some parts otherwise. I could see that the way the screen was lifting away, the antenna, for example, would not be affected. Some luck may have been involved, but the repair did work.