I liked that. A fairly honest review. Ta for posting
My comments:
I have tried some cheap ebay/amazon lights. Pretty much as Rob says. They work. Pretty decent for the price, BUT .... the battery packs are total junk. ALL of them. They won't last properly more than one season and they don't run particularly long even when they are working. However the connectors are fairly standard, and I managed to pick up a couple of VERY high quality alternate branded packs when PlanetX had a bargain deal on them, so now I have them as helmet lights and they are still going strong 4 or more years down the line.
However I also have some Magicshine lights as well. They are excellent. I'd call them a sweet spot - superb build quality and good quality components, yet not as crazy expensive as some of the other brands...
...Like the exposure light tested.
However don't get me wrong - I've seen LOTS of people who own the exposure stuff comment that they've had them for years, and years and years, and they just keep on going, and if there IS a problem, then the returns/warranty is the best. So if money wasn't an object, the Exposure models would get the thumbs up from me as well! (and the battery run times are usually best in class as well).