I have only been here once, but I will definitely be going back. I got the Dutch Baby, which turned out to be well worth the 20 minute wait. It is basically a giant Yorkshire Pudding, if you know what that is (a pancake that is cooked with a grease dropping in the middle so the sides rise into a bowl shape) but lemon curd is used in the middle instead of the Yorkshire Pudding's traditional fat or butter. It is served with powdered sugar, fresh lemon, and both are excellent. It is somewhat embarassing when it comes to your table, because it is HUGE, but it was so good that I ate it all. Service was also great. Our waiter was very friendly and chatty, and even let us bring the Diedrich coffee's we had just gotten in to our table. If weird shaped pancakes arent your thing, dont fret. Everything (especially the omlets) looks terrific, and everyone I know who has ever been to Plum's has rave reviews. Keep in mind that this is no IHOP though, and breakfast can easily be $10-$15/ person.
Pros: Great service, Good food, The infamous Dutch Baby
Cons: Not enough seating for its popularity--but well worth the wait, if there is one.