This is In-N-Out. As it's name implies, you are not there long. You weave your way to the register and place your order. A few minutes later, your number is called and pick up you sack of deliciousness!
One of the best bargains near Linq and Flamingo.
Don't forget the "secret menu". You don't have to order what is on the menu board.
Now, is this the best fast food burger? I don't know. There are so many choices. But for overall speed and quality, they do a damn good job at a great price.