I love it! - Really, it's so much more responsive than OOO. But it's horribly unstable.
Hard to describe, nearly at every attempt of advanced editing:
* copied a table from calc and tried to edit it
* tried to select a template at the template manager
* tried to select a macro at the macro manager
I'm at Mac OS X 10.5.8 Leopard, PPC G4 at 1350MHz - I removed the ~/Library/Applicationsupport/LibreOffice folder and removed ~/Library/LibreO prefs - which made things better, but only temporarily.
Sorry I'm so unspecific - but I dont find any system behind these incidents.
Found that the crashes come from a little app called "RightZoom" which makes other apps behave like OOO: Green button zooms the window on the entire screen. Put LibO on the "exclusions" list in RightZoom, and things are all right.