San Fransisco, CA. My wife and I went there for our honeymoon because out of the 5 cities we narrowed it down to that was the cheapest flight/hotel combo.
Trash everywhere. Everything smelled terrible. Everything was super expensive. The people were rude. Nobody knew how to drive. Horns being honked everywhere all the time. Homeless people begging for money and if you turned them down theyd yell at you. Actual shit in the streets. And the cops were just assholes.
In every city I have ever been, I have always found a police officer on my first day, strike up a conversation, and eventually ask them about places to go and places to avoid. Cops know exactly what seedy restaurants are not up to code, what places are safe, and where relatively average people want to go. The cop I talked to in SF was an asshole. He just said look on yelp like everyone else and walked a few paces away to stand leaning against a building and check his phone.
Couple hours later I saw a cop at an instersection waiting for a like, this guy runs a red light, almost nailed a crossing pedestrian, and the cop immediately pulls him over. The guy - who is black - gets out of his car and starts screaming racism. The cop calls for backup, a sergeant shows up, and the guy is still yelling about being racially profiled. The sergeant lets him go. No ticket. No arrest. Not even a stern talking to. The guy shrugged and told him to leave. So not only are SF cops assholes but they dont even have spines.
The food, like I said before, was expensive as hell. A meal for two? Expect to pay $25+ at some hole in the wall. At a nice sit down place? $50+. And its not like the quality was so good it balanced out. It was average food at best. Our hotel didnt have a microwave (which sucked) but even if it did we would have brought home leftovers once the entire trip to eat the next morning.
People were rude. Hold the door open for someone? No thank you. Somebody drops something and you pick it up for them? They snatch it away with a dirty glare like I was trying to steal it. Most of the waiters/waitresses we had were slowpokes who spent more time talking to coworkers than doing their job. One time my wife and I were at a place nearsaw the baseball stadium and ordered water with our meal. Waitress rolled her eyes. Later on, we see our orders placed on the back bar ready to be sent out, and I timed a full 7 minutes before the waitress brought us our plates. She was busy flirting with the bartender. When we asked for more water she did a big sigh. We didnt give her a tip at all and when we were walking out I saw her pick up the receipt and she just about went ballistic.
Too many people, almost everyone was rude, too much trash, the public transportation was lacking, ZERO public bathrooms (seriously - walked around for 4+ hours one day just looking for a bathroom. No restaurants, grocery stores, fast food places, shopping stores, anywhere had a bathroom), and the list goes on. I did not like San Francisco much at all.
Highlights were the Zoo (good), Alcatraz (good), and a baseball game right there on the water. Damn fine stadium and the Giants made it an entertaining game while I was there.
Overall, easily the worst city I have been to. My wife grew up in a town of 320 people. I will take that 100/100 times over going to San Francisco again.