Fantastic experience, I highly recommend it. I had a fantastic view of the city, better than the view from the Empire State Building. The pilot was a great guide as well. When you get your confirmation, it says call up 24 hours before the flight to confirm your place. Call further in advance, weeks ahead if possible, as I was given a set time which wasn't ideal. If you call early enough, you can pick a time that suits you. Also, don't expect to record any sound if you bring a camcorder, all I got was the sound of the helicopter whirring, although I think most sensible people would expect this anyway. If you get the seat I got in the middle at the back, you'll be in the worst seat possible. It's cramped, and it's the only seat that's not right next to a window. Regardless of those points, it was still an amazing sight to behold and I can't advocate for it enough. The tour operators say they are at the heliport at 30th St, when actually they are on 12th Ave between 30th and 33rd. This didn't really cause many problems as when walking down 30th I could see the helicopters.