Of course I hiked up the Cholla trail in September. I didn't know what to expect. I don't think I had the right shoes to wear for this hike. You'll need good traction if you intend to hike up the entire mountain (which is basically rock-climbing after you reach "Helipad Plateau". Be careful, the nice views show a reminder of your early death if you fall off of the mountain from fainting of dehydration or not having a strong enough grip when hugging the mountain.
FIVE STAR! This hike was so much fun!