I try and hike this baby...er...monster 3x a week. It's a great cardio workout and never seems to get any easier if you try and go faster and faster every time. The best time to go is in the early morning around 7 where you can actually get a parking spot. Otherwise, try and miss the lunch hour rush and go around 2ish if the weather isn't too hot.
If you do come here and it's super packed (weekends, thursdays and fridays-does anyone work in AZ?) you're going to have to park around and down Tatum, I believe. The reason for my 4 stars is really for the parking situation. It sucks. Look at it as a warm-up to your hike?
I've fallen many times on this mountain...sometimes I'll kick its ass, and other times, it owns mine. And if you hear anyone trampling downhill behind you...please move to the side so that they can pass you. I hate it when I run over people. It makes me feel bad...kind of.
The view is great at the top and definitely worthwhile. I prefer Camelback to Squaw Peak because the scenery has more color to it. Squaw Peak is a bit too gray for me. I try and take my friends up here so I can catch up with them outside of a bar and also get my workout on. Kill 2 birds with one stone...that is, if they don't die. I know, I'm gangsta.