Battery capacity less than 1/2 original
Screen removal with blue pry tool and suction cup was easy, no risk of damage to the home button cable. Battery adhesive broke and I neglected to read the step by step guide so prying it out was tough.
Battery adhesive application instructions were unclear. The newer strips are very different and I got it on crooked. So I used a pair of scissors to trim the part sticking out the side.
Getting the display and digitizer connectors back on again was very difficult. The first time the digitizer connector popped off while I was struggling with the display connector and I didn't notice. So when I turned the phone on there were vertical stripes down the screen and touch did not work so I could not completely power the phone down.
I popped the screen off, removed the home button cable then disconnected the battery. I was able to work the digitizer connector into place without disturbing the other display connectors.
This repair is not for the faint of heart. It is tricky work with tiny connectors and screws. Anyone not comfortable with delicate electronic assembly techniques should not attempt it.