I am replying to all of these in a batch. I got the same ones from VZW, discounted to $9.74 when I made the purchase online, and I installed it after 2 tries perfectly fine. In addition, I have no loss of functionality (I have been using it to tweet, check email, browse the web and test the GPS functionality, thus far, without a hitch), so I am not sure about the complaints being lodged here.
As for the fact that it does not cover the capacitive keys, well, that I have to agree on - no idea why they did that....
As for the setting to increase touch sensitivity, I never looked for it b/c I did not need it.
I ***will* say that every now and again I will touch the screen and it seems as if the app I am in all of a sudden has gone to the end (noticed this 3 times today, twice browsing and once when tweeting), but I cannot say for a fact if this is due to the screen protector or not, b/c I refused to use my phone without it on (I programmed it with the original protective sleeve that came with the phone, then removed that and installed this).