After two disappointments regarding inexpensive protective covers for the iPhone 4S I have one last attempt to start and ordered the VAU Snap Case Slider. So far I am very pleased: very well made, nothing wobbles, no sharp edges. The case is internally covered with a velvet-like surface to prevent scratches on the rear of your phone. It sits very tight, but fit. The edge protrudes slightly beyond the top of the display, so you can also place it upside down on the table, without the screen scratched. The surface of the shell is slightly rubberized and dust resistant. Nevertheless fingerprints or traces of light protection can be seen totally easy and the material can be more difficult to clean, similar to the Thinkpad lids.
Despite the criticism the right price / performance ratio, I will update the review as soon as the case is slightly longer in use
UPDATE: Even after prolonged use my positive experience persists to the Case. So far, nothing is broken, worn out or worn. Both the iPhone and the sleeve are in very good condition.