What did I like? Seeing a few famous landmarks, a couple of the restaurants, and my rental apartment had free NetFlix.
I've done the whole norovirus dance once too. It really does knock you out for a week or two. (I started feeling sick when walking around outside one morning, decided to take the subway back home, the first sickness struck while waiting for the train—I just had to throw up on the subway tracks. Pretty awful. Some nice bystanders gave me an unopened bottle of water they had with them which was nice.)
In some ways it seems all the "regular" people get absorbed into other levels of success/purpose outside of technology here, so technology is left with a larger weirdo population than SF since there are many more non-techonlogy things to make regular people happy around here.