So far, I love everything OLight makes. This particular one is super flexible and can be used a number of different ways with the right-angle light orientation. The light is small and easy to pocket by itself, has a strong magnetic base that allows it to stick to metal when it isn’t mounted to the head elastic (amazing for working in the back of a pickup where it can stick magnetically to the inside of the truck bed and light things up 90 degrees from its base rather than than blinding the operator and only partially illuminating the cargo as a straight magnetic light would do), and is very versatile, bright and long-lasting. The head mount is great for relatively low intensity activities like examining / changing a tire, setting up camp, etc. where you need hands free, but I’m not sure I’d want to go on a long nighttime trail run because of the weight and potentially need to reposition. Small super lightweight headlamps like Black Diamond or Biolite are probably better for that specific application. In any event, OLights are amazing and you should buy any the look useful for what you need.