LibreOffice is good enough for typing up a few simple paragraphs and occasionally tweaking the font. Anything even slightly complicated, though, will look like

LibreOffice is good enough for typing up a few simple paragraphs and occasionally tweaking the font. Anything even slightly complicated, though, will look like a modern webpage rendered in IE6. This is merely annoying with Word documents, but downright catastrophic with PowerPoint slides. I don't care how many obscure features it can emulate if it can't even render line spacing properly.