Didn't enjoy at all. Had to stand out in the sun for an hour then flight was very disappointing.
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Be prepared to encounter chaos. They will tell you to come 15 minutes early and then you will wait one hour with no one really telling you what is going on. If you are a size 8 or below you will fit nicely in the seats. Be prepared to squeeze if you are over that.
Great trip, certainly worth doing as an introduction to New York before hitting the streets on foot.