Mostly just ok… half small, half boring, half dull, but ok.
Updated July 2023:
Pretty much the same experience as last time, and their other locations actually.
Spicy bbq chicken. Difficult to eat because the chicken is so tall - it would be smarter with a fatter version.
The bun was slightly burnt. Weird greyish chicken, unfortunately with some pieces of cartilage. As others write, all meat comes directly from frost to the grill/golden well.
The sauce certainly didn't seem like jalapeno either in appearance or taste, but rather a chili mayo. Ok, but again, not much food for the money. Luckily this was a sweet deal - I wouldn't pay full price for a burger from here again.
The one at work was super fresh and nice, good service, the other looked somewhat stressed and didn't have much energy for anything.