I have now used the trial version of MEP15+, and although I like the revamped menus, etc. a little better, I don't like the "improved" AVCHD handling.
When editing HD video from the JAAZZ HDV178 camera, MEP15+ no longer handles that "first frame" anomaly like MEP14+ did.. Those who have this camera will know what I'm talking about. If I cut the first frame off, I lose the video, like most other editors. MEP14+ would retain that first frame datawhen clipping, allowing the video to be seen. No more!