I only spent couple days in NYC, but the experience was pretty awful: the city is crowded, it stinks, and is full of weirdos (for example some random girl I asked for directions turned out to be a prostitute, some guy started to yell at me for no reason, etc.). I also almost got killed by an SUV when trying to cross the street, and my hotel room turned out to be the size of an average walk-in closet.

But I guess NYC can grow on you in time?