I grew up in Houston, and had lived in Dallas for nearly 10 years by the time I first went to NYC.
Interesting? Absolutely. In many ways, it’s where the action is in the US. You have titans of industry, entertainment luminaries, culinary rock stars, real rock stars, sports figures, etc… all here, as well as a pretty good dose of history and culture. Plus, it’s well-nigh ubiquitous in popular culture- the standard “urban” landscape is always somewhere in the 5 boroughs, even if they don’t explicitly say so. Sitcoms, dramas, movies, etc… all have been set here for decades. It’s fascinating from that perspective.
Intimidating? Only in the sense that NYC seems to be MORE <whatever> than everywhere else. For example, built-up urban sprawl is like 90% of the city, while in other places, like say Dallas, Houston, New Orleans, Kansas City, etc… that sort of built-up area is maybe 15-20% at best. Also, the sheer weight of the stuff listed under “Interesting?” is an intimidating factor. What do you do? What do you see? Where do you eat? You can easily spend a weekend in NYC and only scratch the surface. Finally, the pace of the place is exhausting if you’re from somewhere lower-key. I’ve traveled in many parts of Europe, and several other huge cities, and nowhere have I had that feeling of exhaustion at the end of the day like NYC. It’s like your internal tachometer runs about 15% faster than usual there.
**Scary? ** Not in the least, and I accidentally took an extended pedestrian journey through the middle of the Bronx. (my wife wanted to go to the Arthur Ave. Little Italy, except she got confused about where it was, and we got off at the wrong subway stop, and walked like 17 blocks to get there.) I mean, if you’re scared by minorities or close quarters, then it might be scary, but in terms of crime or urban decay, not at all. There are parts of southern Dallas and southern Houston that I wouldn’t go unarmed to, but I never had that feeling in NYC.