I commented that 3 people in a row had been really impressed with one screen protector in particular.
3 months now and it has not come loose and has not lost anything in sensitivity.
I saw the dots yesterday breifly as it was very sunny and I had the screen at just the wrong angle.
I think one problem many people have is by not being careful and installing in dusty environments. The guide on this protector helps with application but screen pre-cleaning and environment are key.
It would also help to install after vacuuming to remove excess dust but also running a hot shower hot will increase humidity and encourage airbourne dust to settle so could be worth doing several minutes before installation.
If you are due housework anyway then doing the chores and having a shower to freshen up after the effort should leave you with a much les dusty environment for installation.