Three hours and one small win over 4 machines.
The machines are harsh, you have to get all 5 of the same exact type to get a win (at least on the 4 I played), so bar, bar, bar, 7bar, 7 does not win, and at no point did the bonus items ever line up even two in a row, not to even dream of 5. We were across from the cashiers and they had spider webs being built around them. But, we were there for three hours and we heard exactly ONE machine pay out. We were there on a Wednesday afternoon, caveat.