This was the best hour spent in NYC. To see the bridges, Freedom Tower, Empire State Building, Ellis Island and Statue of Liberty was amazing. Next stop was Top of the Rock, also booked through Viator. Highly recommend Viator for booking tours.
For the trip itself I would give 5/5 but this being our second trip and the same thing happening again - we got a seat outside upstairs but everybody crams round the sides therefore making it impossible to actually see anything which spoils it for everyone.
It was a great trip and perfect as far as sightseeing! 4 stars