I have both the black (matte) and orange (glossy) shell for my L635. From a practical standpoint I definitely prefer the orange one since the black one is very slippery. However, I have reverted back to using the black one for a simple reason: it just looks weird if a guy wearing a suite & tie pulls out a bright orange smartphone. It's awesome for private use but since this is my one and only business phone I've decided to tone it down a notch and go with the less in-your-face black shell.