I had the Jerk chicken, no meat pattie that day :(, Have to come back, when I do I'll update.
The jerk chicken was pretty good, which equals Great for Madison. Not really spicy like jerk can be, though maybe medium by upper-Midwest standards; your mileage may vary. The chicken breast and other pieces were moist, well-cooked and served atop dirty rice (like jambalaya but no meats). The rice made an excellent juice catcher.
The only complaint besides meat pattie outage would be the paper tray the dish came in didn't really lend itself to stable transport via car over the messed up roads. Easily something most won't encounter and no big deal.
They have Jamaican champagne cola and ginger beer alongside usual drinks, a nice touch.
Service is friendly and fast, though there was a wait while the cart was unattended for a few minutes while the owner went and got something.The jerk could have used a bit more spice in my humble opinion, or sauce. Then again I have a sauce thing.
I'll definitely be back to try the rest of the menu.