It is not possible to over hype the Grand Canyon, majestic, timeless and breathtaking. I came here over 30 years ago and the view took my breath away then as it does now.
The park was clean, well maintained with nice and reasonably clean bathroom facilities throughout the south rim. There are also water refill stations spaced throughout. There are various shuttle buses throughout the day from sunrise to sunset. The staff is well informed and professional. The rim hike is easy, flat and the ground paved, so no hiking shoes necessary unless you are looking to hike down the canyon.
There are various restaurants and cafes but the quality of the food is poor everywhere, so bring your own food