I'm no guru but I do have 5 good lights by Fenix, nitecore, eagletac and now jetbeam.
2750 lumens might be a little exaggerated but I could be wrong. The focus is different than my other lights so that's probably what I'm noticing.
My only complaint is that the light comes on in low every time, There's no memory to bring it back on in the last mode you had it in. Otherwise its a nice light. Built well and could be used to defend yourself if needed.
Buy good batteries because you'll need them. I picked up a pair of O-light 3500mah and they work great with this light.