Negatives:
Quality varies sometimes during transmission between very good and good (slight pixelation and blurring).
On the first day of use there was in a series Breaking Bad repeatedly charging delay that were not on the Internet.
Main negative point here also gets a star deduction. It is only supported Kindle and IPad. Other Tablets work (yet), since the APP is not offered (Amazon UK). But by the same manufacturer that there also provided app works on your phone. Here I simply lack the reasoning, since the smartphone is still a lot smaller, so watching the long run was not good for the eyes and also the play does not run smoothly here but only with stuttering.
I hope this is quickly remedied yet.