Darrell’s 5-star review:
Did you leave your heart in San Francisco? Tony Bennet wasn't the only one.
There are so many great cities in the U.S. and I love visiting them all. This is one of my favorite if not my favorite. California large cities have a California feel to them. Not Frisco. It truely has a East Coast feel. The architecture gives you that feeling. The tightness and hustle bustle of it adds to that feeling. However, it has a western attitude, which, of course, is friendly; not the cold shoulder that you get on the east coast.
On top of that, no other city can compare to it's geography. The climax is uniquely SF. Cold mornings and nights. Hot days with the ability to freeze your butt off if you're not prepared. I always tell people to always carry a jacket; yet they always come back and tell me that they had to buy one because they didn't take my warning seriously. Then the hills. These aren't hills. They are the steepest terrain you find any where in the middle of the city. Then the views. Just inside the city is amazing, but surrounding the city is more amazing. The bay and the ocean gives you an extremely scenic photo opportunity no matter which direction you look. The city is filled with great stores and great restaurants as well. There is so much to do here that no matter your length of stay, you will not have enough time to do it.
I suggest you take the BART from either SF or Oakland airports, because they stop at those airports and have many stops inside the city. Parking is impossible and very very expensive.
I'm not going to mention all the spots you need to go to since many of the Yelpers do a great job in giving you recommendations.
I can't wait to come back. This city should be on your bucket list. After you visit, you will agree with me.