I have installed 2 of these without any bubbles or problems at all.
Once installed it is like having no protector on at all. Silky smooth feel, no fingerprints and perfect touch sensitivity.
Just make sure your case clears the protector or the edges will lift. And make sure you use a case, as the phone overall is quite slippery with the screen protector installed.
10 out of 10. Well done Whitestone.