I find it quite intuitive. When you switch FreeWarp on it on it puts markers on each barline (there may be a preference for this or it may be my particular audio events??), and I delete the ones I don’t want by shift-clicking them. Then I click and drag on note starts (using eye-balling of the waveform and playing/rewinding) to add a marker and drag it to the beat I need it to be at. I may add many of those markers, sometimes one for each note of the instrument if it’s really randomly out of time.
But overall, I prefer my other method where I adjust the click track to match the music first, it seems easier to me…
Mike.