From start to finish, SO SMART. While others are fighting to find parking spots, you board a smooth, stress-free and FUN ride into the park. You learn so much along the way, there is a food car, there are singing cowboys, "robbers" and Marshalls, so many handouts and fun things for adults and kids...I can't say enough! Bathrooms are spotless, staff are amazing, and they drop you off at a central location in the park. You basically have 3.5 hours, and to be honest, that is all you want. We walked a ton of Bright Angel's trail, even more of the south rim trail, went into 4 shops and bought stuff, had a sit down lunch, and waited in line for ice cream. Tons of pics and all our very active group needed. 11 out of 10 on my vacation scale!