Look at the reviews on B H Photo for the Wimberley 200. There were 534 reviews of which all but 24 were five star. The 24 were 4 star mostly small issues.
The only gimbal that I have seen that arguably might be better performing is the Really Right Stuff PG-02 pano-gimbal head which is considerably more expensive.
The ideal gimbal standard of performance allows you to move the camera/lens smoothly and quickly with no resistance. At the same time you can take your hands off the camera/lens and it stays in place without having to tighten a friction control.
To get this to work properly the lens has to be properly balanced. This usually means adjusting the camera/lens position on the gimbal both horizontally and vertically. The horizontal range is controlled by having a long enough lens plate on the lens. The vertical range is controlled by the vertical adjustment range on the gimbal. These adjustments relate to a horizontal mount gimbal, one where the plate attaches under the lens instead of to the side. I personally prefer the horizontal mount because it is less risky to mount or unmount the lens.
There is a separate control issue if the camera is to be used for panorama shots. As I understand it for panorama to work properly you need to get the lens centered vertically on the rotation pivot point. Since cameras and lenses differ in dimensions this is accomplished by a control that allows the mount to shift in a third dimension, side to side.
I dont't do panorama shooting and I don't know how important it is to center vertically. Can you adjust for this in post processing, I don't know.
The Really Right Stuff PG-02 provides the ability to adjust in three dimensions, the Wimberley 200 does not. For that difference you pay $1000 for the Really Right Stuff instead of $600 something for the Wimberley.