They also have the little cafe by it for a bit which they're running as a "Hash House", serving hashes, waffles and some other stuff. They've said it's popup though and they don't know how long they have the space for.
I don't think they've started doing chips again, but when they were doing them they were always sold out of chips when I went there. I do think Burger Bros is better than Trolls Pantry in terms of taste, but having more space to sit and chips does make a difference (although I haven't tried them...