I have the envelope for two years now and until now more than ever to peace. They decided to stay 2 tours around the world behind so was salt water 'cold and heat. Accordingly, it has also gotten the odd quirk. After about 1 1/2 years now and before that the tablet slipped out of the set-up function came. However, this happens very rarely and makes no problems. As promised by the manufacturer all inputs and outputs are freely accessible and by the 360 degree rotating stretcher shell tablet can even be loaded without problems. If this envelope irghendwann times of old age dies then I will order me definitely again Ps: The TF300T fits perfectly.