I have a pair of Cateye lights. The headlight is ok for being seen, and for slow riding at night. I really treat it more as a cloudy/rain visibility tool. The rear light seems to give me good visibility. The longer I use my headlight, the less happy I am with how it performs in very low light. The beam just isn't wide enough to make me really comfortable going at a good clip. It's also no good for improving *my* ability to see if the weather is lousy. We've had some thunderstorms lately that have made it dark at 2pm, and my headlight did not perform as well as I wanted. For a more normal rainstorm or foggy day, it's fine.

I don't ride a lot at night so far, so upgrading the headlight isn't a big priority.