Took the plunge and ordered one too, and after receiving it a couple of day ago, I can honest say that it's improved the lights effectiveness for road use, although I feel that the beam is now much to wide and would have preferred something between the spot of the original and the one I got from the link above.

Also if anyone's thinking of getting it (definitely worth the money!), my advice if you have handlebars with any amount of rise, is to install and adjust the lens on the bike since even the most minute amount of rotation throws the beam off the horizontal axis. I'm planning on building a base to move it above the front fender/v-brakes where stock bicycle lights are usually located (at least in Europe).