I haven't, but I did a Google search on it and came up with a bunch of images (click on the "iimages" option on the top of the page).
I know it doesn't give you first-hand reports or reviews (necessarily), but it can give you an idea of results. I kind of liked the snake skin effects that I saw. Though, the zebra prints were interesting as well as other animal print patterns.
I realize you're likely looking for personal reports from INGO users, and that's fine. I'm just suggesting an additional avenue in your research.
My own thoughts of the process and effects is that it's great if your point is to either blend into a particular environment, or maybe just for a "cool" factor. But it's sometimes kind of funny to see someones handgun with a "winter camo" patter when they're living in FLA, for example.
....it'd be interesting to see something in a "blue jean & t-shirt" pattern for summer carry.