Bought all the stuff, took about 2 hours. I removed the fans, motherboard, etc per instructions. It did make battery easier to take off. If you got stuff on your display, it's because you didn't tilt your laptop and it probably leaked out through the trackpad.

I didn't have to use a heat gun or anything. The adhesive remover (blue stuff) they give you is extremely powerful and after about 1-2 minutes, glue starts falling apart and you can gently pry out the battery cells.

One thing to note, WRITE DOWN WHERE THE SCREWS GO. There is about 8 different types.

All in all, cycle count 0, so far so good!