My husband and I just did the Rim-to-Rim Grand Canyon hike with two-night stay at Phantom Ranch. Awesome experience from start to finish. This is a can't miss opportunity. AOA handles all the logistics and does it very well. We are not big on the group travel thing, so the real appeal for us was small group size (seven max). Our guide, Kevin, was fantastic: knowledgeable, friendly, relaxed. We were able to hike at our own pace allowing all to have a great hiking experience.