Well, I've had a few minutes to play with the light now, and here are a few of my initial impressions:
This thing is tiny and light. I was actually surprised by how light and short it is.
I am not exaggerating when I say that the machining, surface finish, and overall fit and finish are as good or better than any Fenix or Nitecore light I've seen. Seriously impressive in this regard.
You can tell that a lot of time was put into this light. There are a lot of parts in this one that were designed specifically for this light---from the solid copper tailcap, to the driver, to the Noctigon button boot.
This is just my opinion, but the dedomed XP-G2 1D emitters in this one put out a pretty awesome and useful beam. The tint is also very good, especially for dedomed emitters. I took it outside and this thing is a beast!
The driver has a ton of different features. I'm just starting to get used to it now, but it seems pretty good.
The button has a lit RGB LED array. It can be used as a constant light, as a beacon, or it can be turnedoff (unlike the MM15!!!). This is more useful than most, because it shows the current battery state.
While this light has thermal management, it isn't set very conservative. The light can get pretty hot on turbo before it starts to ramp down. If you're holding the battery tube you'll be OK, but the head gets pretty uncomfortable. I think that most flashaholics prefer the management to not be too conservative, but a few of "the uninitiated" may think that it is getting pretty hot!
Because it's a boost driver, there isn't infinite dimming, but there is a good range of modes. Here are the OTF lumens I measured (dedomed XP-G2)
Moon: 1.9
Low: 107
Mid: 756
High: 2901
Turbo: 6458
Of note, the Turbo output only dropped about 50 lumens after 1 minute. This is unusual and is obviously due to the boost driver. The output in all of the modes is remarkably consistent.
Throw is visually very impressive for such a small multi-emitter light. Again, I think that the dedomed XP-G2 may be the one to get here, but I'll have to see one with the XP-Ls to compare against. I measured about 73kcd. That's pretty good for a light like this!
Anyhow, I'm going to play with it for another day or so, take some pictures, then send it on.