Six months doesn't make me completely comfortable, but I'll definitely keep it in mind when looking into Libre.
Libre Office isn't really a new product, but the continuation of Open Office. Oracle purchased OO and then a bunch of the open source developers got fearful that Oracle would start to charge for it or ruin it somehow.
Where the software was still open source, the developers were able to take it and continue on with it as Libre. So then Oracle said to heck with it and announced they will not develop OO anymore.