I am in love with the late night menu (served from 10 p.m. until 1 a.m.), particularly the steak sandwich. I get the horseradish cream on the side so I can control the amount. But man, is that thing good! And the price is right (they just raised it to $9 from $8.50).
The onion rings are also incredibly delicious. I'm not a huge fan of onion rings in general, but they really do it right. They are thin slices of onion and the batter is light and crispy.
On weekdays (Mon-Thurs.) they also have $2 off their specialty cocktails. I've tried several now and one of my faves has a pepper rim and green chile vodka.
The ambiance is pretty fun as well -- dimly lit, with cozy booths. It can get kind of packed, depending on the day. But it is well worth it.