Our party of four booked this trip as a birthday celebration, the day before we were contacted and asked if we would change to a different type of vehicle, we said no and explained that we specifically wanted a limo, when we got back to the hotel I was asked to ring the limo company who told me they didn't have a limo available for the afternoon and could we swap to the morning, we really had no choice, it was that or nothing but it was really disappointing as we had booked and paid months in advance. I have contacted Viator regarding this but two weeks on they have not had the courtesy to reply to me. The tour itself was very interesting and the guide was lovely but we couldn't go to quite a few places we wanted to because the UN was in town and half the city was closed off. I imagine that was also why there where no limos available!
It was fantastic, the tour guide was funny and told as a lot of information. and showed us great places of New York.
Good guide. Might be an idea to plan what you want to see with your guide before tour date.