The front is very powerful and has decent battery life. I find its actuation a bit confusing, particularly if you like to use a pulse sequence to extend battery life during daytime rides. The mount is easy to put on, but you need to really wrap it tightly to prevent the relatively heavy light from shifting around on bumps. The rear light is exceptionally nice. It has three settings, the top one of which I suspect can be seen from outer space. And it wraps around far enough on the side to increase visibility to cross traffic too. Not cheap, but still a good value.