In-N-Out is a solid burger joint that's worth going to if you're ever in the area.
The wife and I both had burgers with french fries. To be honest, I don't like the shoestring fries, which seem to go stale in a hurry and are a bit dense for my liking. But it's okay, because the burgers, with mustard and/or a special thousand-island style dressing more than make up for it.
The beef tastes fresh, and it's seasoned lightly. And I think the buns have a light coating of butter or oil, and they're wonderfully soft to boot.
There were a ton of people here for lunch on a Saturday afternoon, so you might have to take your food outside.