This airport is home for the biggest flying club in the US (and probably the world) Plus One Flyers. This is a great club to learn to fly and continue flying. If you are visiting San Diego, it's also very convenient as it's close to San Diego, La Jolla, etc.
The airport is quite busy though with a mix of training, corporate jets and helicopters. It's also between two class B airspace so you need to make sure you pay attention.
There is a Mexican restaurant Casa Machado on the field. It's also a great place to take a Bay tour or flight down the coast.