It feels like the buttons will fail very soon. If you press a key, first there is a click, then the pressing itself, but slightly tight (0:39). If pressed sharply, they seem to crunch. But after a couple of three clicks, they are press normally, as it should be. But if after a while you grab the tablet again, then it repeats again.
[embed|http://www.youtube.com/watch?v=dsSEuQZGnTw]