It is still nice to use old versions of Office. I think 2003 was my favorite. Simple, usable, no usage-based UI, no pop-ups like "look at this new feature we silently installed!" while you're trying to write.
On a whim a few years ago I wrote an engineering proposal on my Pentium MMX using Word 2003. It opened within 2 seconds via the aging hard disk. Today even LibreOffice feels a bit overwrought. I've found AbiWord delightful recently - it's the WordPad analog of LibreOffice.
Very nice! I wrote a Christmas letter on my Pentium 3 to my partner's family last year, it was very cozy feeling. Not only that, but I was able to print it to my networked Brother printer without a problem.
