The screen protector was easy to apply, and all the bits and pieces were included (anti-static cleaning cloth, plastic card for eliminating air bubbles). I didn't notice any reduction in sensitivity of the touch screen, and the screen protector has a good feel whether using the stylus or fingers.
The case comes in two parts which snap on. It makes the phone feel secure, rugged and well-protected. There are three minor disadvantages: the case increases the bulk of the phone a little, the case reduces the free space above the top keyboard row a little, and the case makes it slightly harder to deploy the kickstand, but these are very minor issues for me.
Overall I'm very satisfied. I can't think of any way in which the design could be improved, and the price is near the low end for this kind of device. I received it two days after ordering it.