I'd never used a 'good' front light until recently, when I borrowed a friend's Lezyne Macro Drive. I was surprised by it's performance, to say the least. Inspired by that, I've just ordered a Cree (which hasn't yet arrived). One aspect of many of these lights that I don't like, however, is the rubber-band arrangement that holds them on to the handlebars.
I love cycling at night, BTW, and the more remote and dark the location, the better I like it. I was given a start the other night when a fox broke cover and ran across the road right in front of me. The perception of speed is different when visibility is limited. Here in the Yorkshire Wolds I see many cyclists during the day, but they all seem to disappear as the sun goes down. I think they're missing out, personally.
Steve