i have one and i personally dont like it for general climbing. only when i need to seperate different types of gear, say pins, screw et al...
sometimes when using it i have found myself accidently clipping gear in between the loops and that creates somewhat of a cluster fuck. also it is kinda pain if you have to switch sides.
and since people tend to rack per size, i fund that it weighs towards the back(heavier pieces) and shifts then smaller ones higher into your chest.