I dropped in here after visiting ASU campus. I bookmarked this as one of my "tourist" spots and so did many others lol. It was not extremely crowded to the point it was unbearable. It was close to the zoo and parking was a little confusing, but it wasn't too bad.
It was a small hike up this rock and I had on Converse so no hiking equipment is required, but it probably is a good idea to grab some comfy shoes. I would not recommend anyone wear dress shoes at all, but I did see some flip flops so don't be intimidated. It is an easy trek.
I got to the hole at the perfect time...sunset. The view was beautiful and I just found me a spot to sit and took some amazing pictures. The best part was this was FREE! Yep, you don't even have to pay to parl.