Beautiful location but it's just way too expensive. You need to work full time at a tech company here to really afford it. It's also quite small. The divide between rich and poor is obscene, including a lot of homeless and many people asking for money all over. The tech workers who dominate the transplant crowd that you'll be around are mostly workaholic spoiled privileged people full of themselves, not the type I enjoy hanging out with. All the artsy, alternative, and activist types the city used to be known for either live in Oakland or left. The gender ratio is way too heavy on single males, so good luck getting a date, let alone a long term relationship, if you're a straight guy. Obviously, Internet speeds are great, plenty of spots to work from. Nightlife is pretty lackluster as you can imagine.
One of the most well known cities, few will be surprised by what they see and experience. Very high cost of living can make it tough for many nomads. A lot of things to see and do but most of that costs money. Can feel overwhelming and oppressively business oriented (ie, full of very serious yuppies and places catering to them), especially in Manhattan south of Harlem. Ton of single people, which is good on paper but means everyone you date will get distracted by another person, or multiple, unless you are extremely exceptional, before you have a chance to meet again, never ends. Weather sucks hard from July to August and January to March/April. It's an okay city if you're a biker and varies a lot. Some areas are quite protected, others have no bike lanes. In general, it can be dangerous if you want to commute by bike, it's not Amsterdam. Friendliness of the people varies a lot. I think income/wealth, where they grew up, where they live within NYC, their job, etc. can often give you an idea of what to expect. Service at stores is usually pretty unhelpful and unfriendly but, again, it varies, even within the same store. Internet is fast for the most part. Great selection of food, just a bit pricey besides some of the cheaper pizza slices. Transportation system is good, no need for a car. However, the subway lines are notorious for having issues during rush hour and are usually jam packed. Also, the stations look decrepit and are way out of date. It's pretty safe. Street scams are more prevalent in tourist areas, pick-pocketing and random phone snatching isn't really anything most people worry about. Can be very noisy depending on where you live. You may wake up to extremely loud construction every morning.
Nothing does a better job of explaining LA’s beautiful diversity and different neighborhoods than the documentary about the late Jonathan Gold, our city’s greatest amabassador and the only food critic to ever win a Pulitzer Prize. It is called, “City of Gold” and if you want to know LA, just watch this film. Trailer link: https://youtu.be/DmKTRDfz1zM
Great place to hang out in Texas. Enjoy the crowds? Head downtown during and after a UT football game in the fall. Avoid the crowds? Take a short drive to the hill country to hang out on a lake, hike the hills, or tour one of the many wineries or distilleries.