Within central NY this is the best observation deck. Way, way better than top of the Rock and outcompetes the Empire State Building due to its modern design, excellent lift entertainment, glass floor area and ability to literally go to the Edge. Plus you get a great view of the Empire State Building.
The USP of the glass floor you can look all the way down plus the ability to peer over the edge are both unique in NY. The location means you get brilliant views of the skyline and across the river.
I am baffled as to how many sub 4 star reviews there are for this excellent attraction. You can combine the Edge with seeing the vessel and doing the high line and the Intrepid is a short walk away.
If you are in NY for a short time do the Edge and One World as they are by far the best options.