http://www.shtfgear.com/Holster-by-Make ... -45C#intro
Ordered this holster through Amazon when I bought my HK45C. I paid about $67 (including shipping) for it, but could have saved about $10 through their site with the NRA discount.

So I ordered this holster after going through reviews and it was reviewed well compared to the equivalent crossbreed, and comes standard with a full grip cut.
First impressions are that it is well made compared to some, but it isn't a custom holster by any means. There is some rough edging on the leather that I'm going to go over with my edging tool at some point.
Another small point of contention is that while cut for a full grip I find that I cannot get a high enough grip for my liking. That said, I do tend to have an abnormally high grip and ride the thumb safety so not totally the holster's fault.
The one major (if you can call it that) flaw though with this holster is that the leather is not hardened or reinforced in any way. This leads to the sweat guard to fold down and catch on the thumb safety when reholstering the firearm. I may reinforce or harden this myself if I cannot train around it. With that said it is not a safety issue, nor does it really affect the usability enough to warrant a return.
Now with that said the holster is comfortable, I wore it around today and barely noticed I was wearing it. Along with the comfort my HK45C was near invisible under a light (and somewhat small on me) T-shirt, a feat that is unattainable with my 1911 and other holsters.
Retention (when worn) is good and unholstering is smooth and easy. Reholstering (disregarding the leather issue) is positive, but silent.
The kydex is stitched with Kevlar as well as riveted so it shouldn't come apart any time soon. The belt clips are strong feeling but even so they offer free clips for life.
I'm going to wear this holster around some more and update how it works in the long run. They offer a 30 day money back guarantee, but I don't think I'm going to need it.
First impressions are 7/10.
I'm still planning to buy a full kydex OWB rig for times where concealability isn't as much of an issue.