I tried a simple roundtrip lookup for United flights, specifying exact dates and times (within the hour, anyway). It wouldn't show scheduled flights anywhere near the times I asked for (even using Full Flight Search). I eventually figured out I could get the flights I wanted by selecting Multiple City, adding a bogus segment to the end of the desired itinerary (making it an open-jaw), requesting "Partially Refundable" as the cancellation penalty, replacing the bogus segment with itself, this time selecting Any (Best Fare), and finally deleting the bogus segment. Only then would it fare correctly. There didn't seem to be any way to see the fare basis or rules. To its credit, the speed is impressive, and the seat mapper is pretty good.

If you're looking for a replacement for easySABRE, this ain't it. Not even close.