The demo video is pretty doggone impressive.
YouTube - OxyCheq Mach V Extreme Wing
That said, I can't imagine anyone beating up wings as much as I do, and I've never holed a wing - not even the old Pioneers, which, by today's standards, would be pretty wimpy. I have, however, worn them out... Gotten the stitches to fray and come apart, worn them into a brown ragtag of bleached fabric, and worn out dozens of inflators.
Every time, Halcyon has replaced any errant wing with a brand new one, free of charge. Regardless of how long I've owned it. Regardless of the fact that they know I'm a commercial diver. Always the same day, right on the spot.
I've never owned an Oxycheq - but I can tell you that I know a lot of guys that have one. They look pretty doggone nice, and the owners seem really happy with them.
Not really a fan of the "flap" over the elbow, the plastic inflator hose, and the length of the inflator hose - I prefer Halcyon's design better - but again, the Oxycheq looks to be a very high quality wing, and these are probably minor nuances.
Oxycheq's plates, however (made by the recluse Scott Koplin), are tops, IMHO.
One of my guys has a DSS system. Looks to be a high quality unit, too, but the guy who owns it is new, and I haven't really studied the system much.
I didn't appreciate the way that I saw Tobin treat one of his clients here on SB... Not to mention that he was pretty foul to me, too... So I wouldn't buy a glass of water from the guy if I'd walked the desert for three days - but his products may be good.