Smashed glass on iPhone 5s screen.
The repair went very well, and using the iFixit guides, I was able to anticipate any gotchas with regards to the replacement. The iPhone 5 seemed to me to be more difficult than the iPhone 5s. I have replaced about 10 screens for friends and family, and I prefer iFixit for the instructional guides.
This review will be more geared towards the iPhone 5s screen replacement.
The iPhone 5 has a home button that has a special cable that if damaged means you must replace the home button, with the 5s, the job is easier when you swap the touch ID home button over to the new assembly. My advice on the iPhone 5s is do not fret about the Touch ID cable at the beginning, it isn't too difficult to pop the metal cover off and get it unclipped. The other thing I was worried about was the orientation of the spring clip on the screw for the home button assembly on the display, but once I saw some pictures of the original alignment I was able to line it up. My recommendation on the guide would be to include a close up picture of the alignment of that spring clip in its original orientation that better highlights how it should look when reassembling.