The Flash timeline was counterintuitive but once you grokked it, it was super easy and super efficient. I came to Flash from After Effects (much more intuitive keyframing) and hated Flash until my brain clicked with it.
the flash timeline has poor visual cues on it as to what was going on. key frames area easy enough to get. but sometimes the timeline ends in a dash pattern, then there's the multiple open and closed ends on one timeline. All in all there are just too many states. Live motion was a good tool that just never got out of a buggy state but had an easier timeline to work in.
