Absolutely loved the Hughes 500 doors-off helicopter tour.  Mike, the driver/safety instructor was very friendly and informative.  He set the tone for a fun experience. The pilot, Ben,  was great.  Had the back seat and he would turn to get views from both sides of the helicopter so didn't miss out on anything.  He was informative and excellent at getting around the canyon to see the amazing waterfalls.  Things to know:  Wear a jacket or fleece... a windbreaker wouldn't have kept warm in the windy and sometimes rainy conditions at the higher elevations.  If you have hair that will blow around, bring hair tie or something to pull it back securely.  And most of all... just enjoy it for the spectacular and exciting tour that it is meant to be!