The happy hour at Sonic Drive-In is what makes Sonic standout over the other fast food restaurants. You just have to be patient for the line of cars during this time. I was fortunate to pull up to the window at 5pm--the last customer. Sonic relives the past with its rollerskating service and yes the slushes are out of this world--just sip slow otherwise you get that once to often brainfreeze--strawberry slush with strawberries, yes! Sonic is definitely a must