The iOpener works fine, I'm not sure what y'all are talking about. To be fair, you have to press the iOpener into the iPad in order for it to work, which isn't explained well in this tutorial. Wear heat-resistant gloves when you do this, the center portion of the iOpener gets VERY hot. I use a pair of gloves from ACE Hardware. While it takes a bit more effort with the picks, I was able to heat up one side of the iPad, then seperate the adhesive with the picks the rest of the way through.
I do not recommend using the little blue tool they show above, the part you're supposed to wedge in is way too thick. I use the Jimmy and some opening picks.
Third image is slightly misleading, you want to go about a centimeter below the volume button.