One word: Awesome!
We did the half hour ride over the Strip at night and it was great. The pilot was super cool and the helicopter was in great shape.
They provided a shuttle to and from our hotel that was on time, clean, and well maintained.
They have a small terminal at the airport with a comfortable waiting room and the terminal staff was well organized.
All in all they were a class act. At no point was there any feeling like they were a shady touristy outfit.
If you're in Vegas, give these guys a try for something really different.