Very cool place downtown to get sundaes and milkshakes. I kept it super basic with a vanilla milkshake and loved it! One of the best I've ever had even with being such a plain flavor. I didn't think it was anymore expensive than an ice-cream shop or fast food option. The quality is what sets it over the top.
Driving by you can't help but notice this place. We parked a few blocks away near the William Penn and walked down. There is a parking garage not far away and some on street parking options, if you're lucky enough to get a spot.