Haven't used the light in question, but a BOB lister said it was better than his old home made LED lighting setup. He linked to this page (I think that's him with the single review):
http://www.amazon.com/Avenir-Dynamo-...enir+headlight
I'm willing to try it, once I get some more money in my bicycle budget. I currently have an edulux on my main ride, I need some cheaper headlights for my other bikes. The price is nice