The helicopter ride was fun and definitely an excellent way to see the Grand Canyon, Hoover Dam, etc. I don't know anything about helicopters, but the EcoStar seems really cool, especially because there's so much visibillity - almost no matter where you're sitting. But the bus ride to the heliport was really long. It took well over an hour to get there and about an hour and twenty minutes to get back, even though we were staying right on the Vegas strip (Circus Circus). We spent more time in buses than in the helicopter - more like twice as long, in fact. So, if you like helicopters and love buses, this would be great trip to take.
Pros: Great equipment, pleasant, informed pilot
Cons: Long bus ride, drivers and staff rather rude and unhelpful