Did the same back in the day with OpenOffice. MS Word would crash ad-hoc past a certain page count plus the auto-indexing feature of OO actually worked and was predictable. Also.. the styling was, if clunky, at least workable! Actually think the later versions of LibreOffice have started going down hill, heavier (initially the libre fork prided itself on being light-weight afair) and still as ugly as ever.