I just received mine yesterday. I can also confirm Z4 doesn't root it even though it looks like it does. Which is a shame. The AppsLib they provide looks a little sketchy to me and I don't trust half of the programs. The screen does take some getting used to but my main complaint is the buttons. They seem to me to be super touchy. I don't even need to touch the device to trigger them so I tend to hit the search in the middle of Angry Birds. The other (though not so bad) is the computer connection. On the two machines I've tried both come up with a driver issue. But my one machine still accesses the internal memory and storage card once. If I unplug the tablet, I have to use another USB port to get the same effect. I'm currently downloading a driver that hopefully corrects it. I have installed Flash 10.1 through an APK. The builtin YouTube app tends to stutter until after you install Flash, then it works much better. Once someone figures out rooting it, I will be playing with it much more.