I use the GoPro HD exclusively with this chest and him can only recommend. The material of the belts and the plate on which the camera is mounted is very high quality and super. Use the belt for MTB and also for motorcycle, so I always have to change the width of the straps. However, the adjustment of the straps are super.
The only thing I ever noted is this: It should be between the buckle (which the belt is assembled) and the plastic sheet on which the camera is mounted, glue some foam or rubber. Otherwise the buckle hits the plastic while driving and the camera the noise generated by mitaufzeichnet.