Oh, I totally forgot one very annoying bug:
Switching the granularity of the Gantt chart unit shifts around the currently seen time window.
Especially when one does something like this:
* Select the tasks of interest in a huge schedule
* Click on "Scale to Fit Selection" in the Gantt chart control
* Clicking on one task to analyze it (thereby loosing the selection)
* Realise that for this few tasks the units of years from my huge schedule are not fine enough
* Click on 'Months' to have a finer time granularity displayed in the Gantt chart
* See the Gantt chart jump around outside the perfectly fit display.
* Having to reselect the previously selected tasks
* Click "Scale to Fit Selection" again.

I can't count how often I have done this.
Please make the switch in time granularity units NOT change the displayed range in the Gantt chart!

Best regards,
Michael