The Joy midi burger is basically a backyard bbq burger done better. I enjoyed the thin 5 oz. patty, though I would've liked mine cooked closer to medium rare. The rest of the burger components were pretty classic — lettuce, tomato, and red onion on a sesame bun. The real game changers were the specialty toppings. The Joy Burger team hooked us up with a great custom sauce. It was a garlicky, mildly spicy mayo that reminded me of Shake Shack's Shack Sauce. (Speaking of Shake Shack, if Joy served its midi burger on a potato roll, it would've been a pretty convincing knockoff Shack burger.) The other special sauces like the wasabi mayo, pesto, and olive tapenade were pleasant deviations from the ketchup/mustard/mayo norm, but none of them could really compete with the special garlic mayo. The only sauce that I didn't enjoy was the sweet chili. It didn't taste like it had any business accompanying a burger meal.
The non-burger components of the meal, i.e. the fries and onion rings, were top-notch. The fries were perfectly crunchy on the outside and soft on the inside. My only criticism was that they could've used a lot more salt. The abundance of dipping sauces, however, did make up for that flaw. The onion rings were absolutely delicious. They were lightly sweet and crunchy, and I could've eaten them all day.
On value alone, I would definitely come back to Joy Burger. It's hard to find a good burger and fries combo in the city for under $10, and this one fits the bill. I can see myself coming back here before or after checking out a movie at the IFC.