A well written and fairly thorough review except you appear to be biased, completely omitting negative details such as the $27 proprietary battery.

When you want a back up battery or the old one needs replacing, any 21700 battery works right? <$10 and you have a new light right?
Nope, only the $27 battery from olight works in this light. Live in Canada and need a new battery? Sucks to be you, might as well buy a new light with how expensive shipping is.

Olight isn’t offering anything special with this light except for the ease of charging. They do however turn a blind eye to their customers in favour of higher profits. They could easily price the cell like a regular 21700, it wouldn’t even be that bad if they did that. Instead they choose to charge 3 times more for it and screw their customers over.