Please do keep us informed. I figure when my set eventually needs upkeep (battery effectiveness fades, bulbs burn out etc) I will go back to this thread.

In the meantime, I should mention that I am still quite pleased. Not only have I used them on my daily commutes, but I've also travelled with them twice, and had our butts saved by having the light set on the bike both times (riding after the sun goes down on unfamiliar turf without lights... yikes! that would suck). When in doubt, bring your lights!