It was a pretty good burger until 2013 when they changed the machine they used to cook the burgers. Now it's worse than McD's and that's saying something.
I've been weirded out by the fact that their jr burger buns are now super shiny as if they are spraying something on them. I know this is processed food, but no burger bun should be able to reflect sunlight the way their burgers now do...
That said, every other Burger King around me, and near my house in Louisiana, and near all of the places I lived including NJ, NY, CT, VT have been awful. I never ate there BEFORE this 2013 change though, so I cannot comment on the quality in the before times. But my local, is amazing. Tastes like I remember it from the 90s.