I grew up in SoCal and had access to In-N-Out pretty much whenever that craving hit. Then I lived in Colorado and New Mexico for 10 years. Ten long years of torture, unsatisfied cravings and crappy burgers. So it is without shame that I admit that a huge deciding factor in my move to Arizona was the presence of In-N-Out burger.
There's no dollar menu, only 3 combo meals and except for the price, the menu is essentially the same as it was 50 years ago. Yet In-N-Out is ingenious in its simplicity. You always know what to expect: fresh meat, never frozen; fresh cut french fries; fresh lettuce and tomatoes; and real American cheese.
I live just up the street from the Rural and 202 location. Like every other In-N-Out I have visited in the area, the store is clean and the staff are all friendly and each possesses many more brain cells than your average McDonald's or Burger King employee.
If you've never been, or rarely get to go, then you definitely want to go with the Double Double, fries and a shake. If you get to go there more frequently then you might want to scale back to a regular cheeseburger unless you have a really fast metabolism. Also, Google "In-N-Out secret menu" for a complete list of all the secret menu items such as animal style burgers and fries, 4X4's and the like. I definitely recommend the animal style fries...so tastey.