I have one, but don't really have a choice. I have two small children and they LOVE cell phones. So, when you turn your back for literally just a few seconds, it is gone. I currently am using an Incipio DualPro on my Z3. Between that and the Tudia Ultra Slim Bumper style case, I keep something on my phone at all times. It has already saved me from some scratches and potential breaks.