My iPhone would not go into vibrate mode, and I could not adjust ringer or call volume.
Pretty well, lots of extremely small screws to take care of, as well as fragile parts. Overall these phones are very modular allowing for a "plug and play" type of fix. Total time to repair was about 30 minutes.
Good idea to tape a piece of paper to your table and put circles on there with the steps and place screws in it (ifix download), as well as notes on the orientation of the specific parts