So far we've only eaten inside. The staff has always been friendly, sometimes super friendly and they've actually gone out of their way to make sure we're happy. (Yeah, "Mom fail" on ordering the cheeseburger regular instead of plain - they insisted on making a new one when it was totally my mistake.
They seem to always have clean tables too, at least on Friday nights. We also like the fact that they have condiment pumps available at the counter. Pretty nice one for a fast food restaurant.