'O' no, I've heard of this type of place before, shaved ice with flavored syrup.
I'm no shaved ice connoisseur but the texture of the ice is what differentiates these places from one another. Purp Penguin's ice has the texture of mini ice chips which has a rough texture. I prefer the ice that is smooth in your mouth somewhat feels like ice cream. They call this a snowcone shack but where is the cone? The ice is served in a Styrofoam cup which I guess is appropriate for the "Shack" theme.
I heard lines get pretty long here but I've had better. If you park Sno Ono beside the shack, Sno Ono would probably have the longer line.