I've found them more fragile when "trimming" tree branches and in bird strikes. They tend to shatter rather than bend, leading to more prop damage, and a greater likelihood of not being able to recover and still fly back home on lightly damaged...
I've been using the Master Air Screw props on my M2P for about two years now. I haven't seen any real benefit in terms of noise or extended flying time, but they have worked fine for me.
FYI, DJI is not out of stock on propellers; I'm sure they have a thousands. They use the "out of stock" indicator to basically tell Americans "we're not selling to you for now." Your best bet is to go to the Classified forum and ask about...
An alternative choice, a lot of pilots like the Master Airscrew props.
I've had them for my SPARK back in the day with no problems.
They also add a bit of color to your aircraft...