The only tools people don't complain about are the ones that no one uses.
I've lost my 100 hours trying to get Word to consistently place images in technical docs, only to wind up fighting some of the most unpredictable placement calculations I've ever encountered. I want to punch my screen right now just thinking about it.
It's a tool for not too long technical documents, for secretarial work, for basic marketing text, for quick an dirty but decently presented invoices, for writing a resume.
It has never been meant for writing novels, for page setting, for writing hundreds of pages of technical documentation, and yet... it is used for that. Everyday.
Simply because it's available everywhere.
InDesign is infinitely better for typesetting, but you're the learning curve to get something presentable is higher than LaTeX, because you have to know design, and more expensive than Word.
LyX is the only tool that comes close to replacing Word. It's free, significantly better typesetting, easy to use, and available in most platforms.