Installation was a little challenging at first because the instructions on this site did not perfectly match my model (late 2013 to early 2015).
Found this video on YouTube which described the procedure perfectly https://www.youtube.com/watch?v=Lue6lVWh...
Also the Ifixit kit I received was well put together with everything I needed and more. The calibration went perfectly and I am very pleased. Will buy again!!