Ok I have used the shield for more or less one day.

- Sensitivity: Unaffected
- Surface pressure required: appears to be unaffected, maybe slightly
- Stylus and Finger scrolling etc: The amount of friction compared to the original screen is increased. However it's not uncomfortable, and it does not feel sticky at all once you get used to it in one day. The word 'sticky' is exaggerated I think.

For the protection offered, I think it's worth it unless there are other options with same protection, and maybe a little less friction.

Overall I'm very happy with the quality of both the body and screen protector