Ok. I am going to go against the grain on the install on this one.
I just installed my replacement Glas.Tr, and this is what happened.
I tried wiping and then using the microfiber wipe, but on the first drop of the screen protector I had a little dust under the screen despite my best efforts.
I stopped the screen from adhering completely and removed it, then washed it with warm water and soap, gave the screen another wipe and tried again.
I'm kinda OCD, so I repeated this step probably about five times (that's adhering the protector, peeling it up gently with my fingernail, washing it, and then reapplying). FIVE times. It's perfect now.
Of note, this is what I do. I give the screen protector a wipe and light scrub with my fingertips and a small amount of soap, then rinse it under the tap so that water is running down both sides. As I'm doing this with one hand, I give the screen a final check and if needed a wipe with the cloth to remove any last vestiges of dust, then immediately remove the protector from the water and position it on the screen.
The protector is hydrophobic and very little water is left on it. Literally just a few drops. This effectively turns it into a wet application method. As the protector is adhering to the screen I have time to verify the positioning and pull it up quickly if needed before it adheres completely. Once the adhesive starts displacing the water, I give it a push to help it along, use a tissue to pick up any water escaping around the edges and the holes, then use the squeegee to push the rest of the water out from under the protector and out the sides.
As I said, I literally had the protector up an down and rinsed probably about 5 or more times. The biggest issue you may run into is damaging the adhesive. Do not try to put anything under the protector to wedge it up and break the seal, you can damage the adhesive layer or scrunch it and once it is no longer completely flat it will not adhere properly in that area (what happened to my first one).
My point is that the install with this is not as finicky and one time as some might think. You can remove it, wash it, and reapply it without damaging it if you are careful.