The grip keyboard / screen system is well thought out and I was never a problem.
The tablet is responsive and has a huge autonomy.
I nevertheless returned because the Windows Store is well below what one can find on the Apple Store or the Google Store.
I actually bought this tablet to combine the working party / video playback (with dock, windows 8.1 and Office) and the tablet part (including games for children).
For games, there is not much on the Windows Store and more, it pays almost systematically for games / applications available for free on the other Store.
I have tried to emulate Android on the tablet via Genymotion and Bluestacks but it is still too experimental.