The wheel at the top is fully articulated and can be used in all directions. However, it does not succeed me really good to make the point with the disc in small tablets. Usually I then come to the next letter. I use a pen to date with "normal" tip, with whom I get along very well. Personally I use much rather write a stylus than with your fingers. There is no doubt that I'm writing with a pen so unaccustomed. it is simply the disc at the top that irritates me.
The protective film on the screen like the top not because she has light scratches. but it only happens on the protective film, not on the display of the tablet itself.
For me, the disc is too imprecise to selectively make well. I like a normal lace dear and brings me cope better.