I just couldn't resist ordering this light. I was looking at other similar lights, the Fenix Tk11 being one of them. I really liked the Fenix, but with the lack of a low, survival use setting, I couldn't justify buying it. To me the Olight has it all. Long run time on all settings, and a very long survival type setting, plus stobe. This is my second light in the past couple weeks since my flashlight obsession kicked into high gear. I bought a TK40 last week after eyeballing it for a month of so. Prior to the Fenix, my best light was a Streamlight Stinger, which isn't crap compared to these lights. Don't get me wrong, they are quality lights, but the runtime sucks and they don't put out near the light these new LED's do. I will be using it mainly for camping and hunting, so it seems to be a perfect light for those long bload trails, and long hikes in the woods digging up fire wood. Anyway, I heard some early complaints about the M20. Have they gotten all the bugs out? Tell me what you like and don't like about your M20. I want to hear it all. It's gonna be a long wait for brown to show up next week!