Echo Canyon is my absolute favorite Phoenix hike, but this is close to our house and so convenient. It's a great hour-long hike with plenty of incline to get the heart pumping, and nice scenery. Also, many good trail-running opportunities. Deem Hills confuses me at times, because there are so many trail variations available, but I'm sure I'll appreciate that, once I'm more familiar with the area. It allows for the opportunity to shorten or lengthen a hike, if desired. I suggest bringing water for sure, and maybe a snack, if you're not familiar with the area. It's difficult to get truly "lost," since the canal or some other landmark is almost always visible, but it's very easy to end up going in circles, if you have no GPS. I speak from personal experience.