I have the HLD-6 today indulged my OM-D E5 and spent the afternoon in the city. The handle is processed very solid and fits optically very well with the camera. Reminds me of my old Nikon FM2 with Motor Drive. After tightening it fits snugly and securely to the camera, no unnecessary gaps. The ergonomics and thereby substantially improve the / the two handle parts. Already the stage 1 for the horizontal posture makes the camera better sit in his hand. By now further forward seated with trigger wheel, whose operation is facilitated and the thumb - at least in my - now comes to light two wheel because the finger position is less cramped. Stage 2 for portrait is a real treat. The camera lies stable in your hand, you now have in addition to the vertical shutter release two adjusting wheels and the two function buttons in the immediate, easy-to-reach. Both function buttons take personal configuration that was possibly attached to the OM-D.
The only downer is that the remains a battery in the camera and you have to break down the handle for charging / Jump. It's fast, but it is annoying.
As mentioned here before, the possibility would be desirable to be able to use nomale AA rechargeable batteries or batteries. That would go an emergency option if the BLN-1 are empty, which is indeed quite fast.