I've recently discovered the Shack Shake in Madison Square Park, which I'm told is the original. I've heard from friends that there's another location in the Upper Westside, and I'm curious to hear how it compares. I know they have the same menu, but in terms of the overall experience and quality of food, is there a difference?
...and moreover, does the fact that the other location is a restaurant - not an actual shack - detract from the overall enjoyment?
Curious to know the details from some experienced Chowhounders!
Madison Ave and E 23rd St, New York, NY 10010