I'd have to say my experiece was fair at best. The service and experience from when you showed up until you got off the plane was more assembly line feeling and not one of creating a real experience for you. They weighed us, collected our money, gave us the briefing, and put us on the helicopter. Waiting in the small lobby we just sat and listened to the two employees chat about what they did the night before rather than interact with us.
The pilot was nice, but didn't really share much information about what we were seeing. There were many things I wondered about, but we didnt' have two way headsets either so we couldn't ask him.
The flight was supposed to circle the north and south sections of the island. We did the south section, but went through one valley inthe north section and flew back. We didn't cover a majority of the north sections over Lahaina, etc which I wanted to see, but again had no way to ask him about. The flight lasted about an hour as promised, but we didn't get to cover as much ground as showed in the brochure.
I wouldn't go back again. The company does not seem to be customer focused or really striving to provide an overall excellent experience, but they are happy to sell you a DVD for $50 of your flight.