I have a remington 11-87 that has one of those finishes on it.
These are where they lay the camo film in a tank of water and basically dip the firearm into the coating correct?
My 11-87 has many years of turkey and goose seasons on it. The coating has held up very well on the metal parts, and is flaking off on some of the synthetic plastic parts. This is limited and mostly around the edges of the forend and stock. It has held up well to the solvents, but isn't very abrasive resistant, at least not as much as the standard metal finish underneath.
For a hunting gun, it is great, but it has one major drawback, you make it alot harder to find your firearm if you set it down or lean it against a tree. Not saying I almost lost mine, but had a few of those moments using the outdoor urinal and turned around and was worried for a few seconds... "Wait, Squirrels don't steal shotguns." Blends in about a million times more than "stand out in the woods black."