This is an odd tool... looks great, but when I tried it last week for dates in June, it gave me completely different fares from those visible on QF or DJ for the same dates/flights. And it wasn't a matter of taxes/surcharges or a consistent discrepancy. Some available flights were listed as not available, and fares were all over the place (with almost none corresponding to the QF fares on the QF website). I hope they can get it working better!