I'd only been to Zinburger once before - the first time I was seated inside and the second outside. Both times I remember the food more than anything. Their burgers are delicious, as well as their fries and shakes.
The service was average, somewhat slow at times, but the food was delivered in a very timely manner - and boy was it good.
I'd recommend the restaurant to anyone looking for a very reasonably priced, incredibly high-quality burger.