I did a review on their Eclipse holster - http://www.vdmsr.com/2015/07/g-code-incog-eclipse.html
At the end of the day, as I mentioned in the reviews, there are better holsters that are cheaper and able to be obtained easier.
It is also very difficult to compare a JMCK AIWB Holster against any of the GCodes because they aren't on the same level. The GCode is made to a different, and in my opinion, much lower standard.
I touched on conceal-ability in my reviews and aside from the Eclipse, the standard Incog really struggles in this aspect. A buddy of mine used to carry his G17 in an Incog everyday but he's a much bigger guy than me, 5'10, 290. He can conceal a battle axe if he wanted to. In contrast for the average sized person the GCode isn't designed around proper concealment or comfort. The "tactical fuzz" for example is a feature that is completely unneeded, it adds nothing.
I understand there is a cult following of GCodes stuff and having personal experience with their product, their company and the way they do business I will steer very clear in the future.
Get yourself a JMCK or DarkStarGear AIWB holster. You'll instantly see the difference in quality and overall application capability of said holster.
As with anything and especially in the shooting/gun industry, when shooters make a product, then listen to their customers to refine aspects of that product to make it better, we get the best products available. Gcode doesn't do that.