I've been playing with LibreOffice.
To be honest, I don't have much of interest to say on the matter and that's probably because there is absolutely no difference (that I can discern) between LibreOffice and OpenOffice!
OMG!Ubuntu!) and continued as if nothing much had happened!
However, there has been some development over the last week or so that has been of interest. OMG!Ubuntu! reports that work has begun on updating the icon set in LibreOffice and giving it a more "Ubuntu" feel: let's hope that the interface graphics can finally be brought into the twenty-first century and compete with some of the better known commercial packages.
As the demise of OpenOffice draws closer, it may be time to give LibreOffice a test run.
Sources & References:
The Document Foundation Blog