So many things I don't like. The screws broke within a day with VERY light use. The motors are clumsy, the controls cheap and not sensitive enough, the assembly of the plates is complete nonsense. It is not tightened, so the camera starts to slide off. Remember I'm using a Sony A7sII. A very light camera, but the tension screws just can't take the weight. Could this be a manufacturer error, but not with all individual elements? In terms of motors and controls, it's so difficult to dynamically move between focus positions. It just isn't sensitive enough for active shooting.