The back cover and the battery to make a good impression processed. But what I liked directly to the, thus the S5 is no longer waterproof. In addition, the phone is also thick but this is also the logical consequence, but for me personally a bit too thick. What not so great that it is easily scratched because the surface of piano lacquer. Can ,, after all ,, disadvantages you but then pleased about an extreme battery life of up to 3 days. If a ,, the disadvantages ,, not go out this is a super battery extension.