I received my G2x LE yesterday and put it through a duty shift last night and part of tonight. I must say, I am impressed with it so far. This is the LE (Law Enforcement) model that starts out at high mode then dives into low. I really love that feature. 99% of the time I am sure I will use the high mode - and for when I need it, I am glad to know that it does go into low mode very easily. I can see using it to look at ID's and paper pads close up (when breaking up parties or mass events). I've tried it in different settings and compared it to other similar lights I have. I tried it outside from the truck to buildings or off into the woods for distance, inside our large indoor stadium and inside small and large classrooms.
The light is a warmer tint, but yet still white enough to where I like it. (I like a cool white tint). There is very little "wash-back" from white walls and yet it lights up a room very well. Its hotspot really does reach far - almost as far as my Stinger high lumens (800) and the Sportac drop in I have in my 6P.
It does heat up, quite a bit after 20 minutes, but the polymer grip doesn't hold heat, making it easier to hold in the hand than other lights I own. The head is alloy for heat sinking. I think this is an even better design than an all metal light.
The tailcap on the G2x is really much better to use than my Protac HL-x. Its smoother, easier to depress. The Protac I feel I have to really mash it down to engage it and there "crenellations" or "fins" that surround it that make it even harder to position your thumb over the button. If it weren't for that part alone on the HL-x, I would like it much better.
Conclusion....I think I'll give this light a whirl for a bit on duty. It seems to be well built enough, easy to use, and an all around good middle ground of brightness in throw and spill. Its not blinding, but not dim by any means either. In the settings I'll be using it for, its certainly enough light. I still have my Stinger with me for the big jobs like traffic stops or searches or traffic control (with a wand). And yes, my SL20L is in the car as well.

I'll never get rid of that.
Beam Shots are coming of:
6P with Sportac Drop in
G2x LE
Streamlight Protac HL-x
Streamlight Stinger HL
Streamlight SL20L
Stinger with Terralux Upgrade
Maglite with Terralux Upgrade