I literally just arrived home from my Grand Canyon/Sedona tour with Steve and had such a wonderful time I was compelled to write this review immediately! Steve was a great guide and made the 3+ hour drive to and back from the Grand Canyon seem short--he's chock full of interesting facts and was just plain fun to talk with (and as someone traveling alone, this was really nice).
Steve brought us to three jaw-droppingly beautiful lookouts at the Canyon, giving us some free time to explore on our own, which was much appreciated because it allowed us to take things at our own pace. He also accompanied us for some parts to provide more background information and was extraordinarily informative. You can tell he's passionate about what he does.
I wholeheartedly agree with the other "Excellent" reviews, and cannot emphasize enough that if you're looking to tour Arizona you have to go with Arizona Scenic Tours! If I ever come back I will surely book with Steve again.