I haven't done it but it doesn't look terrible.
Camelback is a 23% grade
The upper section (not the ten foot climb) of Flatiron is 60%, of course the boulders make it easy.
This one comes in a 40%
If it's pure sand, it's a problem but I don't think that's the case and it's pretty short lived.
The backside of Superstition Peak down to Massacre is 70% and there's nothing to hang on to, now that was a nail bitter.
Hike Arizona it ROCKS!