Hey iFixit got my kit today and it went pretty easy. I did notice in the step by step when you follow the instructions using the iSclack if you click the "Skip to step 7" link it takes you to step 7 in the display replacement instructions. I noticed it pretty quickly when it started to have me remove the home button, but I could see it causing someone some trouble.
Other than that it went great.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.