There's a very detailed review of it with lots of personal opinions of different users. For me, it's one of the "i really wish i had money for it" lights. Surefire quality, backed with the awesome CS, high output, two stage tailcap, Fresnel lens (somehow works like a TIR),... The only concern that reviewer had was that isn't all that well regulated on lithium primaries. Search for M3LT review, there's a lot to read:thumbsup: