Awesome food, service and atmosphere! This place is TINY and they only take cash, so be prepared. The wait can get long on the weekends, but its worth it.
The scrambler is always great, but its a humongous portion, so go hungry! The cinnamon rolls and daily coffee cake are worth the extra $1 and the griddle cakes (oatmeal batter with raisins) are delicious. I've never tries their lunch items because breakfast is too good, but I always see a lot of people ordering sandwiches so imagine they're tasty as well.
Definitely a "must" when in Madison.