I have been testing out of Swampfox's Hostile Environment mounts. My preliminary finding is that it is in the "Good enough" category with other Chinese mounts like the Burris PEPR and SWFA SSALT. It will probably hold onto a scope, mount straight enough to let you get a good zero and hold that zero adequately through a reasonable amount of indifferent handling. It doesn't have the best design, material or workmanship, it doesn't inspire confidence or pride of ownership. It does seem to be marginally adequate.
Marginally adequate isn't in and of itself a terrible thing. The US military is the best in the world and the vast majority of the equipment they are supplied with is no better than marginally adequate. I like to do better when I can, but you have to decide where your priorities are.