I have the first release and IMO it's one of the best headlamps I own. I have plenty of others including ones from Black Diamond, Petzl, Ledlenser, Zebralight, etc and I think the Biolite is the best bang for your buck light. It's really comfortable, balanced due to the battery pack being separated, has plenty of modes, has a red light for map reading or night movements, easy to use user interface, tilt, and microUSB rechargeability. I am getting the new 330 soon so I'll report the differences back, if any. Supposedly they did some fixes and improvements.