I've been using a Hangover and the old Trail Edition for about a year. I ended up killing both lights after an ultra race because I rode through two thunderstorms - it looked like condensation got into the units and must have bridged some circuitry. That said, they worked great during, and Outbound replaced both lights, and only asked for the failed units back so they could tear them down and see if they could improve them.

9/10, would trust to watch for cougars at 3am in the middle of nowhere again.