I got the Raven Black Edition, it works as advertised.I like their vest as is very slim, the arm can be adjusted easily, some of the knobs on the sled are delicate but overall good. I really had no other choice if I wanted to start operating, other than to wait couple of year to buy a more expensive rig. I feel you cannot compare this to GPI pro or Tiffens rig as they play in a totally different economic game. I say like Steadiproline is the KIA and GPI and Tiffens the BMW and Mercedez of the industry... lol, try to test as many as you can would be the best.