I bought one on impulse, but then felt slightly pretentious using it. Having tried it in public places a few times I found I didn't really like the fact that it drew more attention to my bag than I would have liked. I didn't like the idea of people wandering past my table at a cafe or whatever and glancing at my bag dangling there. And once I thought about it, I tend to keep my bag safe and clean anyway, without the help of a purse hook. But then the purveyors of small gadgets like nothing more then to convince us that there's some tiny thing we simply cannot live without!