buying chinese mystery gear always gives me the heebie-jeebies.......even if it performs fine, im always going to have "what if" in the back of my mind while diving.....100ft underwater is really not the place i want to be second guessing my equipment, or wishing ide saved a few bucks.
i mean for $50 more you can get a HOG wing which has been tested and has local customer support if you have an issue.
i dont have any experience with the wings in question....but with cheap unbranded Chinese anything.....corners are almost always cut everywhere they can be.......they like you to think that " its made in the same factory as big name equipment so its pretty much the same thing without the label and markup"......but that is hardly if ever true. it may very well be made in the same factory, and it may be the same design....but that doesnt mean anything. almost always the materials, manufacturing, and QC are significantly inferior to the real product.
and in the event that they are "the same as the big name without the label", they are almost always factory rejects that didnt make it through QC, and rather than toss them, the factorys sell the them as unbranded.
its probably fine if youre looking for something for pool or 30' reef dives....a wing failure probably wont be too hazardous.
but i would thoroughly test and inspect one of those wings if you wanted to due much more than that.