Other people have done a better rundown of Sassy JAC's. Check here, here, or here.
I will instead post pictures of the inside and their food.
Also, this Saturday, they are starting their live music schedule. Zack Weber will be playing from 9:30p-12:30a. He will be playing the Fair St. Louis Main Stage earlier in the day after being named a winner in the Fair St. Louis Video Contest.
Here's some video of Zack