I just got my HLD-6 from Adorama today and I'm super excited about how much better it's made the OM-D. I was hesistant at first to pay the steep $299 for it, but geez, it's completely changed the camera for me without adding more more bulk. I'm using only the grip portion, but can see myself using the second battery section when I'm shooting more portraits and/or need the extra juice from a second battery. I was contemplating between the Milich grip (which is a precision machined metal grip, but no extra controls) since it's much cheaper and others have raved about it. However, I'm glad I went with the HLD-6 since I really like the extra controls. After shooting with a DSLR for so long, I hated how the front control wheel was so hard to adjust despite being right by the shutter button. Now with the shutter control and wheel on the grip moved forward, the entire camera is easier to use (and hold). If you're on the fence, don't be. Just get it!