The Fisherman's Wharf is definitely a bit heavy on the tourist side of things, but it's still worth seeing and enjoying. Of course prices tend to be a bit high due to the tourist factor, but there a lots of options for good food, and of course lots of touristy swag to buy. My favorite part of the experience is going to see the sea lions that hang out on Pier 39, in an area that has been set aside for them. Very entertaining! However, they are not always present because like many wild animals, they have their own schedules and migrations to stick to, so it's a good idea to do a quick check online before you go if that's mainly what you are going to see. There are also really great views of Alcatraz, and you can sign up to take a tour to visit Alcatraz, which is one of those classic American things you've got to do at some point in your life. Parking in the area can be a bit difficult an pricey though, so it can be worth it to park a little farther a way and either take a nice walk through the vibrant surrounding SF neighborhoods, or take a cab if you're a little farther away.