I had the latest OpenOffice, which I hated (and a hardcore Linux zealot friend of mine hates it even more, which surprised me).
It takes forever to start up, and if you save your files in MS Word format, the formatting gets mangled when you do open it in Word. You then have to sort it out.
The spellchecker didn't work, it was lacking in features, and the interface was totally outdated and clumsy. I had the latest version, running on Linux and Windows.
Of course, this is just my opinion.