I learned about this new TQ, as that a colleague of mine happened to have one with him during my recent trip to El Salvador. I messed around with it a bit and was impressed, so I decided to buy one to keep with my own kit.
Use of it is pretty intuitive, and there are even steps printed on the webbing. I bought the tan 1.5" wide version, but there are other colors and even a 2" wide and a Pediatric version available.
Applying it single-handed isn't hard at all...probably less time than a CAT-7 or SOF-T WIde, and definitely faster than a NATO TQ. If it must be applied to a leg with the end of the webbing completely out of the buckle, it will take a bit longer, but probably only about as long as using any other TQ in the same way. As with any tourniquet...practice is key. The good news is that this TQ can be used and practiced with repeatedly without fear of it failing during a real-world situation.
Unlike the older, infamous "Ranger Ratchet Strap" TQ...which was capable of breaking bones if the user went too far, this one has a built-in stopping point that mitigates that risk.
I need to practice with mine some more, but so far I am pretty impressed with it. It is available from several different sources on line. RMT
Take a look at the PDF Brochure on the Chinook Medical site above to see the step by step instructions for it.