Terribly overpriced.  Maybe 2 bucks a slider at the most would be in the vicinity of fairly priced.  I really just got overcharged (ten bucks!?!?!?) in cash and (an absolute ton) of calories for a subpar eighth of a meatball on a dinner roll.  No matter how fancy they try to make it, and the toppings sound,  it's a tiny, wholly banal hamburger.  Period.