Not a skip the line tour.
Efficient an minimum lines.
Definitely a great way to skip the line albeit the line to pick up your tickets was minimal but certainly less than the huge line that extended outside for those that hadn't pre-booked. You get as long as you want up the top, and get quite an amazing view of Manhattan from all angles!
The views from the One World Observatory are amazing. When you enter the lift you get to see how New York was built up during the years. You get to see different views of New York, Brooklyn, New Jersey etc as you walk around the top of the building which is brilliant. I would highly recommend attraction and definitely skip the line so much easier.
We made reservations to eat at the Dine One restaurant at the top of the tower which made this a very fun experience. The restaurant treated us exceptionally well and the view was outstanding. The VIP or priority pass helped a lot. The restaurant only excepts reservations through open table online.