Just did this and they turned out great! A few tips to remember: 1. read instructions but don’t follow them. They say to pry staple while panel is on the car and I’d recommend taking panel off and using an awl and needle nose to straighten the staple ends, first! They will release much easier. It is important to do this on the rear panels made of plastic.
2. To hid the staples in the ‘fuzzies’, just carve a channel in the felt (fuzzies) between the staple posts. You must do this on the rear quarter window felts to get the staple to extend through the thick plastic, so the ends can be bent over. I grabbed it with needle nose and curled it by twisting it, like an alligator would if he grabbed your leg.
3. There was two screws holding the original rubber piece on the outside of the window. One in front and back. I found it necessary to add two more in the middle evenly spaced.