The handle can be mounted quickly and makes the X-E1 slightly higher, making them better is big hands in his hand. The handle is rubberized tidy and so far I could not notice because excessive sweating. The handle does not jiggle and fit (he should) perfect for X-E1. Also, the camera can handle the better embrace and thereby additionally stabilize.
Unfortunately you have to dismount the handle when you want to change the battery. However, this is almost all attacks for this camera type like that.
As a single point of criticism I have to state that the handle as such the camera so much increased, that it no longer is level with the XF 35mm lens and always tilts toward the lens. Without the grip, the camera is located on nearly flat.