Mulligan's is that place in Scottsdale you don't think of going to when you're in the mood for dancing, which is mostly why I go out in Scottsdale at night. But I always find myself there either before or after my dance trips. I totally dig the atmosphere at Mulligan's - it's chill, unpretentious, and never obnoxiously crowded. The prices are decent and the location is pretty centralized. The DJ isn't always the best, but when you're with good friends and good drinks, Mulligan's makes you feel at home.
Mulligan's kind of has that dive bar feel but doesn't make you feel like you might get mugged and stabbed in the eye.