QRS-2

It is expensive but it works well. As to complicated I would say no it is not. It is feature rich with a lot of options and the kit came with everything I needed, that's not complicated, that's excellent! It is large and heavy but that is what durability requires. I use it with a 1DX, 24-70 or 70-200 lens and 600EX-RT flash with an external battery pack and it all fits together superb. Come to think about it, it's not the bracket that is heavy, it is all the gear it carries that is heavy and the bracket stands up to the load wonderfully.