I am now. My Mavic just crashed into a tree and fell into dense brush. Lost one prop, broke the other 3. Down to 1/2 set of spares. Gonna order some Platinum props!
Yes, bought a set on eBay, Mavic sounds just as noisy at ground level however I feel they are quieter while overhead. Can't prove it, just my impression. Had to replace a chipped set of original blades and gave the new platinum ones a go. Happy with the result.
I have also noticed the high wind warnings since switching to the new low noise props. Some higher winds here in Central Florida in last two weeks due to colder weather moving in. I am planning a test with standard and low noise props to see if it is related to low noise props.
There have been several posts noting this warning with new props.