My only real complaint about the Otterbox Defender is that the belt clip is horrible. The spring is too weak, allowing the clip to open too easily. Combine this with their misguided attempt to make the belt clip double as a kick stand by allowing it to lock in the open position, and the belt clip ends up locked in the open position on my belt too often, resulting in the holster and phone coming off my belt. While I have no concern that the phone will be damaged by the fall, I am concerned that I might lose the phone entirely.
Thanks for the tip though. I obviously already have a Defender, but I'm considering buy one at this price so I can experiment with improving the clip.