I'll keep it short and simple:
DuPars is a decent breakfast place for when you have a breakfast craving in the middle of the night and don't want to get in the car. The omelets and hash browns are good. The pancakes are fabulous. It's extremely expensive for what it is.
I was disappointed to learn upon reading the menu that this place is a chain - from California (ick) no less. During normal breakfast hours there are much better choices in the neighborhood but for that late-night pancake attack, DuPars is the place to be...if you can get through the hordes of tourists on the way to the Golden Gate.