Very good!
Tried the BBQ burger and was pleasantly surprised.Came back and tried a standard burger a day later and liked it too. Look, I'm not a huge fan of Excalibur, but if you're stuck there on a business trip like I was, you have to make the best of it. Solid burgers in what would otherwise be considered a black hole of fast food.
The thick cut fries are pretty good, too.