As a NOOB to flash photography, I first tried an ALZO flash bracket with my gripped 60D and 580 EX II. First (and only time) I used it, I thought it was a bit 'clutzy' to switch from landscape to portrait, but it worked satisfactorily. It was also heavier than I liked, and mounting it with the 'post' to my right when shooting, it required the optional shutter release button. My problem was when I wanted to shoot without the bracket. Difficult to remove mounting clamp from camera as well as to re-install it and mount to the bracket for additional shooting.
So, I found an older, used RRS 'wedding bracket' on ebay. The ALZO hasn't been touched since. The RRS is one-button, 1 second, to switch from landscape to portrait or back. And although I haven't found a use for it, it can also raise the flash perhaps 8" higher than the 'normal' above the lens position.