Received my XO skin in the mail yesterday, super fast shipping from amazon.
Last night after work I installed it as recommended per the provided instructions and a YouTube video I watched on this.
I installed it about perfectly and let it sit to cure all last night. I am noticing a couple extremely small imperfections (air bubbles, streaks, etc), but these are only visible in certain viewing angles and are hardly noticeable. I anticipate these should work themselves out over the next couple days.
I can barely notice the screen protector on while looking at it, but it does have somewhat of a different feel. It feels somewhat rubbery or like a polyurethane coating. However, this is not that bothersome, especially since I know that my screen is now 100% protected - this seems to be a fair trade off. Who knows, maybe this feel will dissipate after time and use.
I am also using a Diztronic case with the screen protector, and I'm having no issues or conflicts between the 2. So far, despite the price of this thing ($20/protector), I am very happy with it and would definitely recommend it. This is the best install and best protector I have used yet. It's basically unnoticeable.