For me, this does not handle better handling of the camera, he enlarges and complicates these only. So you are just two of the great advantages of the E-M10, their compactness and light weight. Solved right clever, however, is the attachment to the camera, which allows access to the battery / memory card compartment, without having to unscrew the handle.
Since the haptic experience is probably very individual, my experience does not have to be directly transferable on this point.